86198520 has 32 divisors (see below), whose sum is σ = 258595920. Its totient is φ = 22986240.

The previous prime is 86198509. The next prime is 86198521. The reversal of 86198520 is 2589168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86198521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359041 + ... + 359280.

Almost surely, 2^86198520 is an apocalyptic number.

It is an amenable number.

86198520 is an abundant number, since it is smaller than the sum of its proper divisors (172397400).

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

86198520 is a wasteful number, since it uses less digits than its factorization.

86198520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718335 (or 718331 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 86198520 is about 9284.3158067787. The cubic root of 86198520 is about 441.7398741037.

The spelling of 86198520 in words is "eighty-six million, one hundred ninety-eight thousand, five hundred twenty".