3390731 has 2 divisors, whose sum is σ = 3390732. Its totient is φ = 3390730.

The previous prime is 3390719. The next prime is 3390733. The reversal of 3390731 is 1370933.

It is a strong prime.

It is an emirp because it is prime and its reverse (1370933) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3390731 is a prime.

It is a super-2 number, since 2×3390731² = 22994113428722, which contains 22 as substring.

Together with 3390733, it forms a pair of twin primes.

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 3390731.

It is not a weakly prime, because it can be changed into another prime (3390733) 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, 1695365 + 1695366.

It is an arithmetic number, because the mean of its divisors is an integer number (1695366).

Almost surely, 2^3390731 is an apocalyptic number.

3390731 is a deficient number, since it is larger than the sum of its proper divisors (1).

3390731 is an equidigital number, since it uses as much as digits as its factorization.

3390731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701, while the sum is 26.

The square root of 3390731 is about 1841.3937656026. The cubic root of 3390731 is about 150.2326906988.

The spelling of 3390731 in words is "three million, three hundred ninety thousand, seven hundred thirty-one".