87073986 has 16 divisors (see below), whose sum is σ = 177853824. Its totient is φ = 28407024.

The previous prime is 87073963. The next prime is 87073991. The reversal of 87073986 is 68937078.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154105 + ... + 154668.

It is an arithmetic number, because the mean of its divisors is an integer number (11115864).

Almost surely, 2^87073986 is an apocalyptic number.

87073986 is an abundant number, since it is smaller than the sum of its proper divisors (90779838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87073986 is a wasteful number, since it uses less digits than its factorization.

87073986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308825.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 87073986 is about 9331.3442761480. The cubic root of 87073986 is about 443.2303340472.

The spelling of 87073986 in words is "eighty-seven million, seventy-three thousand, nine hundred eighty-six".