99418686 has 32 divisors (see below), whose sum is σ = 215677728. Its totient is φ = 30428160.

The previous prime is 99418681. The next prime is 99418691. The reversal of 99418686 is 68681499.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99418681) and next prime (99418691).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99418681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7705 + ... + 16068.

It is an arithmetic number, because the mean of its divisors is an integer number (6739929).

Almost surely, 2^99418686 is an apocalyptic number.

99418686 is an abundant number, since it is smaller than the sum of its proper divisors (116259042).

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

99418686 is a wasteful number, since it uses less digits than its factorization.

99418686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23836.

The product of its digits is 746496, while the sum is 51.

The square root of 99418686 is about 9970.8919360306. The cubic root of 99418686 is about 463.2577280613.

The spelling of 99418686 in words is "ninety-nine million, four hundred eighteen thousand, six hundred eighty-six".