86939199 has 6 divisors (see below), whose sum is σ = 125578856. Its totient is φ = 57959460.

The previous prime is 86939197. The next prime is 86939219. The reversal of 86939199 is 99193968.

It is not a de Polignac number, because 86939199 - 2¹ = 86939197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86939197) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4829947 + ... + 4829964.

Almost surely, 2^86939199 is an apocalyptic number.

86939199 is a deficient number, since it is larger than the sum of its proper divisors (38639657).

86939199 is a wasteful number, since it uses less digits than its factorization.

86939199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9659917 (or 9659914 counting only the distinct ones).

The product of its digits is 944784, while the sum is 54.

The square root of 86939199 is about 9324.1192077322. The cubic root of 86939199 is about 443.0015150768.

The spelling of 86939199 in words is "eighty-six million, nine hundred thirty-nine thousand, one hundred ninety-nine".