86208399 has 6 divisors (see below), whose sum is σ = 124523256. Its totient is φ = 57472260.

The previous prime is 86208389. The next prime is 86208443. The reversal of 86208399 is 99380268.

It is not a de Polignac number, because 86208399 - 2¹² = 86204303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86208319) 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, 4789347 + ... + 4789364.

It is an arithmetic number, because the mean of its divisors is an integer number (20753876).

Almost surely, 2^86208399 is an apocalyptic number.

86208399 is a deficient number, since it is larger than the sum of its proper divisors (38314857).

86208399 is a wasteful number, since it uses less digits than its factorization.

86208399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9578717 (or 9578714 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 86208399 is about 9284.8478178159. The cubic root of 86208399 is about 441.7567490319.

The spelling of 86208399 in words is "eighty-six million, two hundred eight thousand, three hundred ninety-nine".