86229918 has 12 divisors (see below), whose sum is σ = 186831528. Its totient is φ = 28743300.

The previous prime is 86229917. The next prime is 86229919. The reversal of 86229918 is 81992268.

86229918 is a `hidden beast` number, since 8 + 622 + 9 + 9 + 18 = 666.

It is an interprime number because it is at equal distance from previous prime (86229917) and next prime (86229919).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86229917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2395258 + ... + 2395293.

It is an arithmetic number, because the mean of its divisors is an integer number (15569294).

Almost surely, 2^86229918 is an apocalyptic number.

86229918 is an abundant number, since it is smaller than the sum of its proper divisors (100601610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86229918 is a wasteful number, since it uses less digits than its factorization.

86229918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790559 (or 4790556 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 86229918 is about 9286.0065690263. The cubic root of 86229918 is about 441.7935024988.

The spelling of 86229918 in words is "eighty-six million, two hundred twenty-nine thousand, nine hundred eighteen".