86580238 has 4 divisors (see below), whose sum is σ = 129870360. Its totient is φ = 43290118.

The previous prime is 86580209. The next prime is 86580271. The reversal of 86580238 is 83208568.

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

It is a super-2 number, since 2×86580238² = 14992275224273288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86580238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21645058 + ... + 21645061.

It is an arithmetic number, because the mean of its divisors is an integer number (32467590).

Almost surely, 2^86580238 is an apocalyptic number.

86580238 is a deficient number, since it is larger than the sum of its proper divisors (43290122).

86580238 is a wasteful number, since it uses less digits than its factorization.

86580238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43290121.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 86580238 is about 9304.8502406003. The cubic root of 86580238 is about 442.3909748744.

The spelling of 86580238 in words is "eighty-six million, five hundred eighty thousand, two hundred thirty-eight".