87080731 has 2 divisors, whose sum is σ = 87080732. Its totient is φ = 87080730.

The previous prime is 87080717. The next prime is 87080753. The reversal of 87080731 is 13708078.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87080731 - 2⁵ = 87080699 is a prime.

It is a super-2 number, since 2×87080731² = 15166107422988722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87080531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43540365 + 43540366.

It is an arithmetic number, because the mean of its divisors is an integer number (43540366).

Almost surely, 2^87080731 is an apocalyptic number.

87080731 is a deficient number, since it is larger than the sum of its proper divisors (1).

87080731 is an equidigital number, since it uses as much as digits as its factorization.

87080731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 87080731 is about 9331.7056854575. The cubic root of 87080731 is about 443.2417783815.

The spelling of 87080731 in words is "eighty-seven million, eighty thousand, seven hundred thirty-one".