86994738 has 24 divisors (see below), whose sum is σ = 191146176. Its totient is φ = 28589400.

The previous prime is 86994737. The next prime is 86994767. The reversal of 86994738 is 83749968.

86994738 is a `hidden beast` number, since 86 + 99 + 473 + 8 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86994731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32758 + ... + 35313.

It is an arithmetic number, because the mean of its divisors is an integer number (7964424).

Almost surely, 2^86994738 is an apocalyptic number.

86994738 is an abundant number, since it is smaller than the sum of its proper divisors (104151438).

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

86994738 is a wasteful number, since it uses less digits than its factorization.

86994738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68150 (or 68147 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 86994738 is about 9327.0969760156. The cubic root of 86994738 is about 443.0958285898.

The spelling of 86994738 in words is "eighty-six million, nine hundred ninety-four thousand, seven hundred thirty-eight".