86397385 has 4 divisors (see below), whose sum is σ = 103676868. Its totient is φ = 69117904.

The previous prime is 86397379. The next prime is 86397397. The reversal of 86397385 is 58379368.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51681721 + 34715664 = 7189^2 + 5892^2 .

It is a cyclic number.

It is not a de Polignac number, because 86397385 - 2²¹ = 84300233 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8639734 + ... + 8639743.

It is an arithmetic number, because the mean of its divisors is an integer number (25919217).

Almost surely, 2^86397385 is an apocalyptic number.

It is an amenable number.

86397385 is a deficient number, since it is larger than the sum of its proper divisors (17279483).

86397385 is a wasteful number, since it uses less digits than its factorization.

86397385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17279482.

The product of its digits is 1088640, while the sum is 49.

The square root of 86397385 is about 9295.0193652300. The cubic root of 86397385 is about 442.0793197259.

The spelling of 86397385 in words is "eighty-six million, three hundred ninety-seven thousand, three hundred eighty-five".