2487931 has 2 divisors, whose sum is σ = 2487932. Its totient is φ = 2487930.

The previous prime is 2487923. The next prime is 2487943. The reversal of 2487931 is 1397842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2487931 - 2³ = 2487923 is a prime.

It is a super-2 number, since 2×2487931² = 12379601321522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2487431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1243965 + 1243966.

It is an arithmetic number, because the mean of its divisors is an integer number (1243966).

2^2487931 is an apocalyptic number.

2487931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2487931 is an equidigital number, since it uses as much as digits as its factorization.

2487931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 2487931 is about 1577.3176598263. The cubic root of 2487931 is about 135.5021263901.

The spelling of 2487931 in words is "two million, four hundred eighty-seven thousand, nine hundred thirty-one".