86977018 has 8 divisors (see below), whose sum is σ = 132252948. Its totient is φ = 42892704.

The previous prime is 86977001. The next prime is 86977019. The reversal of 86977018 is 81077968.

It can be written as a sum of positive squares in 2 ways, for example, as 83302129 + 3674889 = 9127^2 + 1917^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (86977019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297721 + ... + 298012.

Almost surely, 2^86977018 is an apocalyptic number.

86977018 is a deficient number, since it is larger than the sum of its proper divisors (45275930).

86977018 is a wasteful number, since it uses less digits than its factorization.

86977018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595808.

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 86977018 is about 9326.1470072051. The cubic root of 86977018 is about 443.0657417461.

The spelling of 86977018 in words is "eighty-six million, nine hundred seventy-seven thousand, eighteen".