87011870 has 16 divisors (see below), whose sum is σ = 170859888. Its totient is φ = 31640640.

The previous prime is 87011857. The next prime is 87011923. The reversal of 87011870 is 7811078.

It is a congruent number.

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, 395399 + ... + 395618.

It is an arithmetic number, because the mean of its divisors is an integer number (10678743).

Almost surely, 2^87011870 is an apocalyptic number.

87011870 is a deficient number, since it is larger than the sum of its proper divisors (83848018).

87011870 is a wasteful number, since it uses less digits than its factorization.

87011870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791035.

The product of its (nonzero) digits is 3136, while the sum is 32.

The square root of 87011870 is about 9328.0153301761. The cubic root of 87011870 is about 443.1249131822.

The spelling of 87011870 in words is "eighty-seven million, eleven thousand, eight hundred seventy".