87930558731 has 16 divisors (see below), whose sum is σ = 89097657600. Its totient is φ = 86772924000.

The previous prime is 87930558671. The next prime is 87930558773. The reversal of 87930558731 is 13785503978.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87930558731 is a prime.

It is a super-2 number, since 2×87930558731² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87930558031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16975700 + ... + 16980878.

It is an arithmetic number, because the mean of its divisors is an integer number (5568603600).

Almost surely, 2^87930558731 is an apocalyptic number.

87930558731 is a deficient number, since it is larger than the sum of its proper divisors (1167098869).

87930558731 is a wasteful number, since it uses less digits than its factorization.

87930558731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050.

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 87930558731 in words is "eighty-seven billion, nine hundred thirty million, five hundred fifty-eight thousand, seven hundred thirty-one".