86368391 has 4 divisors (see below), whose sum is σ = 86397384. Its totient is φ = 86339400.

The previous prime is 86368363. The next prime is 86368459. The reversal of 86368391 is 19386368.

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

It is a cyclic number.

It is not a de Polignac number, because 86368391 - 2¹⁸ = 86106247 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 (86368361) 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, 9440 + ... + 16181.

It is an arithmetic number, because the mean of its divisors is an integer number (21599346).

Almost surely, 2^86368391 is an apocalyptic number.

86368391 is a deficient number, since it is larger than the sum of its proper divisors (28993).

86368391 is a wasteful number, since it uses less digits than its factorization.

86368391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28992.

The product of its digits is 186624, while the sum is 44.

The square root of 86368391 is about 9293.4595818780. The cubic root of 86368391 is about 442.0298618946.

The spelling of 86368391 in words is "eighty-six million, three hundred sixty-eight thousand, three hundred ninety-one".