641346367 has 4 divisors (see below), whose sum is σ = 641496240. Its totient is φ = 641196496.

The previous prime is 641346361. The next prime is 641346373. The reversal of 641346367 is 763643146.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (641346361) and next prime (641346373).

It is a cyclic number.

It is not a de Polignac number, because 641346367 - 2³ = 641346359 is a prime.

It is a super-2 number, since 2×641346367² = 822650324928197378, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641346361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68323 + ... + 77140.

It is an arithmetic number, because the mean of its divisors is an integer number (160374060).

Almost surely, 2^641346367 is an apocalyptic number.

641346367 is a deficient number, since it is larger than the sum of its proper divisors (149873).

641346367 is a wasteful number, since it uses less digits than its factorization.

641346367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149872.

The product of its digits is 217728, while the sum is 40.

The square root of 641346367 is about 25324.8172155299. The cubic root of 641346367 is about 862.3777568683.

It can be divided in two parts, 64 and 1346367, that added together give a palindrome (1346431).

The spelling of 641346367 in words is "six hundred forty-one million, three hundred forty-six thousand, three hundred sixty-seven".