3646291 has 8 divisors (see below), whose sum is σ = 3999168. Its totient is φ = 3297000.

The previous prime is 3646289. The next prime is 3646319. The reversal of 3646291 is 1926463.

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 3646291 - 2¹ = 3646289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3646231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1536 + ... + 3106.

It is an arithmetic number, because the mean of its divisors is an integer number (499896).

Almost surely, 2^3646291 is an apocalyptic number.

3646291 is a deficient number, since it is larger than the sum of its proper divisors (352877).

3646291 is a wasteful number, since it uses less digits than its factorization.

3646291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793.

The product of its digits is 7776, while the sum is 31.

The square root of 3646291 is about 1909.5263810694. The cubic root of 3646291 is about 153.9160024303.

The spelling of 3646291 in words is "three million, six hundred forty-six thousand, two hundred ninety-one".