87986858 has 16 divisors (see below), whose sum is σ = 135660096. Its totient is φ = 42776160.

The previous prime is 87986839. The next prime is 87986863. The reversal of 87986858 is 85868978.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 87986797 and 87986806.

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, 17843 + ... + 22233.

It is an arithmetic number, because the mean of its divisors is an integer number (8478756).

Almost surely, 2^87986858 is an apocalyptic number.

87986858 is a deficient number, since it is larger than the sum of its proper divisors (47673238).

87986858 is a wasteful number, since it uses less digits than its factorization.

87986858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669.

The product of its digits is 7741440, while the sum is 59.

The square root of 87986858 is about 9380.1310225391. The cubic root of 87986858 is about 444.7738749310.

The spelling of 87986858 in words is "eighty-seven million, nine hundred eighty-six thousand, eight hundred fifty-eight".