87292031 has 2 divisors, whose sum is σ = 87292032. Its totient is φ = 87292030.

The previous prime is 87291979. The next prime is 87292033. The reversal of 87292031 is 13029278.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87292031 - 2¹⁰ = 87291007 is a prime.

It is a super-2 number, since 2×87292031² = 15239797352209922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 87292033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87292033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43646015 + 43646016.

It is an arithmetic number, because the mean of its divisors is an integer number (43646016).

Almost surely, 2^87292031 is an apocalyptic number.

87292031 is a deficient number, since it is larger than the sum of its proper divisors (1).

87292031 is an equidigital number, since it uses as much as digits as its factorization.

87292031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 87292031 is about 9343.0204430901. The cubic root of 87292031 is about 443.5999951621.

The spelling of 87292031 in words is "eighty-seven million, two hundred ninety-two thousand, thirty-one".