86397319 has 4 divisors (see below), whose sum is σ = 87252840. Its totient is φ = 85541800.

The previous prime is 86397317. The next prime is 86397329. The reversal of 86397319 is 91379368.

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 86397319 - 2¹ = 86397317 is a prime.

It is a super-2 number, since 2×86397319² = 14928993460775522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86397317) 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, 427609 + ... + 427810.

It is an arithmetic number, because the mean of its divisors is an integer number (21813210).

Almost surely, 2^86397319 is an apocalyptic number.

86397319 is a deficient number, since it is larger than the sum of its proper divisors (855521).

86397319 is a wasteful number, since it uses less digits than its factorization.

86397319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855520.

The product of its digits is 244944, while the sum is 46.

The square root of 86397319 is about 9295.0158149408. The cubic root of 86397319 is about 442.0792071560.

The spelling of 86397319 in words is "eighty-six million, three hundred ninety-seven thousand, three hundred nineteen".