86198499 has 10 divisors (see below), whose sum is σ = 128765780. Its totient is φ = 57465612.

The previous prime is 86198479. The next prime is 86198509. The reversal of 86198499 is 99489168.

86198499 is a `hidden beast` number, since 8 + 61 + 98 + 499 = 666.

It is not a de Polignac number, because 86198499 - 2¹⁵ = 86165731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86198479) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 532009 + ... + 532170.

It is an arithmetic number, because the mean of its divisors is an integer number (12876578).

Almost surely, 2^86198499 is an apocalyptic number.

86198499 is a deficient number, since it is larger than the sum of its proper divisors (42567281).

86198499 is a wasteful number, since it uses less digits than its factorization.

86198499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064191 (or 1064182 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 54.

The square root of 86198499 is about 9284.3146758390. The cubic root of 86198499 is about 441.7398382309.

The spelling of 86198499 in words is "eighty-six million, one hundred ninety-eight thousand, four hundred ninety-nine".