86218385 has 8 divisors (see below), whose sum is σ = 112867776. Its totient is φ = 62704240.

The previous prime is 86218369. The next prime is 86218423. The reversal of 86218385 is 58381268.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86218385 - 2⁴ = 86218369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783749 + ... + 783858.

It is an arithmetic number, because the mean of its divisors is an integer number (14108472).

Almost surely, 2^86218385 is an apocalyptic number.

It is an amenable number.

86218385 is a deficient number, since it is larger than the sum of its proper divisors (26649391).

86218385 is a wasteful number, since it uses less digits than its factorization.

86218385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567623.

The product of its digits is 92160, while the sum is 41.

The square root of 86218385 is about 9285.3855601154. The cubic root of 86218385 is about 441.7738054233.

It can be divided in two parts, 862183 and 85, that added together give a palindrome (862268).

The spelling of 86218385 in words is "eighty-six million, two hundred eighteen thousand, three hundred eighty-five".