86337978 has 16 divisors (see below), whose sum is σ = 173028000. Its totient is φ = 28720656.

The previous prime is 86337967. The next prime is 86338001. The reversal of 86337978 is 87973368.

It is a self number, because there is not a number n which added to its sum of digits gives 86337978.

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, 11425 + ... + 17412.

It is an arithmetic number, because the mean of its divisors is an integer number (10814250).

Almost surely, 2^86337978 is an apocalyptic number.

86337978 is an abundant number, since it is smaller than the sum of its proper divisors (86690022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86337978 is a wasteful number, since it uses less digits than its factorization.

86337978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29341.

The product of its digits is 1524096, while the sum is 51.

The square root of 86337978 is about 9291.8231795488. The cubic root of 86337978 is about 441.9779716437.

The spelling of 86337978 in words is "eighty-six million, three hundred thirty-seven thousand, nine hundred seventy-eight".