87460008931 has 4 divisors (see below), whose sum is σ = 87462575392. Its totient is φ = 87457442472.

The previous prime is 87460008929. The next prime is 87460008943. The reversal of 87460008931 is 13980006478.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87460008931 - 2¹ = 87460008929 is a prime.

It is a super-2 number, since 2×87460008931² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87460008331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231416 + ... + 1300501.

It is an arithmetic number, because the mean of its divisors is an integer number (21865643848).

Almost surely, 2^87460008931 is an apocalyptic number.

87460008931 is a deficient number, since it is larger than the sum of its proper divisors (2566461).

87460008931 is a wasteful number, since it uses less digits than its factorization.

87460008931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566460.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 87460008931 in words is "eighty-seven billion, four hundred sixty million, eight thousand, nine hundred thirty-one".