87116738 has 12 divisors (see below), whose sum is σ = 138814962. Its totient is φ = 40995840.

The previous prime is 87116713. The next prime is 87116741. The reversal of 87116738 is 83761178.

It can be written as a sum of positive squares in 3 ways, for example, as 86806489 + 310249 = 9317^2 + 557^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87116695 and 87116704.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74783 + ... + 75938.

Almost surely, 2^87116738 is an apocalyptic number.

87116738 is a deficient number, since it is larger than the sum of its proper divisors (51698224).

87116738 is a wasteful number, since it uses less digits than its factorization.

87116738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150757 (or 150740 counting only the distinct ones).

The product of its digits is 56448, while the sum is 41.

The square root of 87116738 is about 9333.6347689418. The cubic root of 87116738 is about 443.3028619580.

The spelling of 87116738 in words is "eighty-seven million, one hundred sixteen thousand, seven hundred thirty-eight".