86957198 has 4 divisors (see below), whose sum is σ = 130435800. Its totient is φ = 43478598.

The previous prime is 86957177. The next prime is 86957203. The reversal of 86957198 is 89175968.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×86957198² = 15123108568022408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21739298 + ... + 21739301.

It is an arithmetic number, because the mean of its divisors is an integer number (32608950).

Almost surely, 2^86957198 is an apocalyptic number.

86957198 is a deficient number, since it is larger than the sum of its proper divisors (43478602).

86957198 is a wasteful number, since it uses less digits than its factorization.

86957198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43478601.

The product of its digits is 1088640, while the sum is 53.

The square root of 86957198 is about 9325.0843427821. The cubic root of 86957198 is about 443.0320844639.

The spelling of 86957198 in words is "eighty-six million, nine hundred fifty-seven thousand, one hundred ninety-eight".