86502379 has 4 divisors (see below), whose sum is σ = 90263376. Its totient is φ = 82741384.

The previous prime is 86502349. The next prime is 86502439. The reversal of 86502379 is 97320568.

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 86502379 - 2⁵ = 86502347 is a prime.

It is a Smith number, since the sum of its digits (40) 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 not an unprimeable number, because it can be changed into a prime (86502329) 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, 1880464 + ... + 1880509.

It is an arithmetic number, because the mean of its divisors is an integer number (22565844).

Almost surely, 2^86502379 is an apocalyptic number.

86502379 is a deficient number, since it is larger than the sum of its proper divisors (3760997).

86502379 is a wasteful number, since it uses less digits than its factorization.

86502379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3760996.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 86502379 is about 9300.6655138221. The cubic root of 86502379 is about 442.2583254780.

The spelling of 86502379 in words is "eighty-six million, five hundred two thousand, three hundred seventy-nine".