3256631 has 8 divisors (see below), whose sum is σ = 3749760. Its totient is φ = 2770488.

The previous prime is 3256621. The next prime is 3256637. The reversal of 3256631 is 1366523.

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

It is not a de Polignac number, because 3256631 - 2⁶ = 3256567 is a prime.

It is a super-2 number, since 2×3256631² = 21211290940322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3256631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3256637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701 + ... + 2646.

It is an arithmetic number, because the mean of its divisors is an integer number (468720).

Almost surely, 2^3256631 is an apocalyptic number.

3256631 is a deficient number, since it is larger than the sum of its proper divisors (493129).

3256631 is a wasteful number, since it uses less digits than its factorization.

3256631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493.

The product of its digits is 3240, while the sum is 26.

The square root of 3256631 is about 1804.6138091015. The cubic root of 3256631 is about 148.2254750430.

The spelling of 3256631 in words is "three million, two hundred fifty-six thousand, six hundred thirty-one".