3397431 has 4 divisors (see below), whose sum is σ = 4529912. Its totient is φ = 2264952.

The previous prime is 3397423. The next prime is 3397469. The reversal of 3397431 is 1347933.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1347933 = 3 ⋅449311.

It is not a de Polignac number, because 3397431 - 2³ = 3397423 is a prime.

It is a super-2 number, since 2×3397431² = 23085074799522, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3397411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566236 + ... + 566241.

It is an arithmetic number, because the mean of its divisors is an integer number (1132478).

Almost surely, 2^3397431 is an apocalyptic number.

3397431 is a deficient number, since it is larger than the sum of its proper divisors (1132481).

3397431 is a wasteful number, since it uses less digits than its factorization.

3397431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132480.

The product of its digits is 6804, while the sum is 30.

The square root of 3397431 is about 1843.2121418871. The cubic root of 3397431 is about 150.3315776129.

It can be divided in two parts, 3397 and 431, that added together give a triangular number (3828 = T₈₇).

The spelling of 3397431 in words is "three million, three hundred ninety-seven thousand, four hundred thirty-one".