3397831 has 2 divisors, whose sum is σ = 3397832. Its totient is φ = 3397830.

The previous prime is 3397829. The next prime is 3397837. The reversal of 3397831 is 1387933.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3397831 - 2¹ = 3397829 is a prime.

It is a super-2 number, since 2×3397831² = 23090511009122, which contains 22 as substring.

Together with 3397829, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3397837) 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 as a sum of consecutive naturals, namely, 1698915 + 1698916.

It is an arithmetic number, because the mean of its divisors is an integer number (1698916).

Almost surely, 2^3397831 is an apocalyptic number.

3397831 is a deficient number, since it is larger than the sum of its proper divisors (1).

3397831 is an equidigital number, since it uses as much as digits as its factorization.

3397831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 3397831 is about 1843.3206449232. The cubic root of 3397831 is about 150.3374771952.

The spelling of 3397831 in words is "three million, three hundred ninety-seven thousand, eight hundred thirty-one".