87891308 has 12 divisors (see below), whose sum is σ = 153905472. Its totient is φ = 43918320.

The previous prime is 87891299. The next prime is 87891313. The reversal of 87891308 is 80319878.

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, 1541 + ... + 13347.

It is an arithmetic number, because the mean of its divisors is an integer number (12825456).

Almost surely, 2^87891308 is an apocalyptic number.

It is an amenable number.

87891308 is a deficient number, since it is larger than the sum of its proper divisors (66014164).

87891308 is a wasteful number, since it uses less digits than its factorization.

87891308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13672 (or 13670 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 87891308 is about 9375.0364265959. The cubic root of 87891308 is about 444.6128147540.

The spelling of 87891308 in words is "eighty-seven million, eight hundred ninety-one thousand, three hundred eight".