2497931 has 2 divisors, whose sum is σ = 2497932. Its totient is φ = 2497930.

The previous prime is 2497927. The next prime is 2497933. The reversal of 2497931 is 1397942.

2497931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2497931 - 2² = 2497927 is a prime.

It is a super-2 number, since 2×2497931² = 12479318561522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2497933, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2497891 and 2497900.

It is not a weakly prime, because it can be changed into another prime (2497933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248965 + 1248966.

It is an arithmetic number, because the mean of its divisors is an integer number (1248966).

2^2497931 is an apocalyptic number.

2497931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2497931 is an equidigital number, since it uses as much as digits as its factorization.

2497931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 2497931 is about 1580.4844194107. The cubic root of 2497931 is about 135.6834296293.

The spelling of 2497931 in words is "two million, four hundred ninety-seven thousand, nine hundred thirty-one".