87012776 has 16 divisors (see below), whose sum is σ = 163447200. Its totient is φ = 43426864.

The previous prime is 87012769. The next prime is 87012811. The reversal of 87012776 is 67721078.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5156 + ... + 14163.

It is an arithmetic number, because the mean of its divisors is an integer number (10215450).

Almost surely, 2^87012776 is an apocalyptic number.

It is an amenable number.

87012776 is a deficient number, since it is larger than the sum of its proper divisors (76434424).

87012776 is a wasteful number, since it uses less digits than its factorization.

87012776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19888 (or 19884 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 87012776 is about 9328.0638934347. The cubic root of 87012776 is about 443.1264511707.

The spelling of 87012776 in words is "eighty-seven million, twelve thousand, seven hundred seventy-six".