87670516 has 24 divisors (see below), whose sum is σ = 156473856. Its totient is φ = 42971040.

The previous prime is 87670489. The next prime is 87670523. The reversal of 87670516 is 61507678.

It is a super-2 number, since 2×87670516² = 15372238751412512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 55165 + ... + 56731.

It is an arithmetic number, because the mean of its divisors is an integer number (6519744).

Almost surely, 2^87670516 is an apocalyptic number.

It is an amenable number.

87670516 is a deficient number, since it is larger than the sum of its proper divisors (68803340).

87670516 is a wasteful number, since it uses less digits than its factorization.

87670516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 87670516 is about 9363.2534943790. The cubic root of 87670516 is about 444.2401981985.

The spelling of 87670516 in words is "eighty-seven million, six hundred seventy thousand, five hundred sixteen".