86312199 has 4 divisors (see below), whose sum is σ = 115082936. Its totient is φ = 57541464.

The previous prime is 86312197. The next prime is 86312251. The reversal of 86312199 is 99121368.

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

It is not a de Polignac number, because 86312199 - 2¹ = 86312197 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 (86312197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14385364 + ... + 14385369.

It is an arithmetic number, because the mean of its divisors is an integer number (28770734).

Almost surely, 2^86312199 is an apocalyptic number.

86312199 is a deficient number, since it is larger than the sum of its proper divisors (28770737).

86312199 is a wasteful number, since it uses less digits than its factorization.

86312199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28770736.

The product of its digits is 23328, while the sum is 39.

The square root of 86312199 is about 9290.4358885899. The cubic root of 86312199 is about 441.9339783181.

The spelling of 86312199 in words is "eighty-six million, three hundred twelve thousand, one hundred ninety-nine".