3031997 has 4 divisors (see below), whose sum is σ = 3039036. Its totient is φ = 3024960.

The previous prime is 3031981. The next prime is 3031999. The reversal of 3031997 is 7991303.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2247001 + 784996 = 1499^2 + 886^2 .

It is a cyclic number.

It is not a de Polignac number, because 3031997 - 2⁴ = 3031981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031999) 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 in 3 ways as a sum of consecutive naturals, for example, 2828 + ... + 3749.

It is an arithmetic number, because the mean of its divisors is an integer number (759759).

Almost surely, 2^3031997 is an apocalyptic number.

It is an amenable number.

3031997 is a deficient number, since it is larger than the sum of its proper divisors (7039).

3031997 is an equidigital number, since it uses as much as digits as its factorization.

3031997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7038.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 3031997 is about 1741.2630473309. The cubic root of 3031997 is about 144.7358965819.

The spelling of 3031997 in words is "three million, thirty-one thousand, nine hundred ninety-seven".