3256831 has 2 divisors, whose sum is σ = 3256832. Its totient is φ = 3256830.

The previous prime is 3256817. The next prime is 3256861. The reversal of 3256831 is 1386523.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3256831 is a prime.

It is a super-2 number, since 2×3256831² = 21213896325122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3256831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3256861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1628415 + 1628416.

It is an arithmetic number, because the mean of its divisors is an integer number (1628416).

Almost surely, 2^3256831 is an apocalyptic number.

3256831 is a deficient number, since it is larger than the sum of its proper divisors (1).

3256831 is an equidigital number, since it uses as much as digits as its factorization.

3256831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 3256831 is about 1804.6692217689. The cubic root of 3256831 is about 148.2285093124.

The spelling of 3256831 in words is "three million, two hundred fifty-six thousand, eight hundred thirty-one".