641267 has 8 divisors (see below), whose sum is σ = 707952. Its totient is φ = 576000.

The previous prime is 641261. The next prime is 641279. The reversal of 641267 is 762146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 641267 - 2⁶ = 641203 is a prime.

It is a super-2 number, since 2×641267² = 822446730578, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (641261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 767 + ... + 1367.

It is an arithmetic number, because the mean of its divisors is an integer number (88494).

2⁶⁴¹²⁶⁷ is an apocalyptic number.

641267 is a deficient number, since it is larger than the sum of its proper divisors (66685).

641267 is a wasteful number, since it uses less digits than its factorization.

641267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709.

The product of its digits is 2016, while the sum is 26.

The square root of 641267 is about 800.7914834712. The cubic root of 641267 is about 86.2342182145.

It can be divided in two parts, 64 and 1267, that added together give a palindrome (1331).

The spelling of 641267 in words is "six hundred forty-one thousand, two hundred sixty-seven".