99078660 has 48 divisors (see below), whose sum is σ = 308246400. Its totient is φ = 26420832.

The previous prime is 99078659. The next prime is 99078709. The reversal of 99078660 is 6687099.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91200 + ... + 92279.

It is an arithmetic number, because the mean of its divisors is an integer number (6421800).

Almost surely, 2^99078660 is an apocalyptic number.

99078660 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

99078660 is an abundant number, since it is smaller than the sum of its proper divisors (209167740).

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

99078660 is a wasteful number, since it uses less digits than its factorization.

99078660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183497 (or 183489 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 99078660 is about 9953.8263999328. The cubic root of 99078660 is about 462.7289891140.

The spelling of 99078660 in words is "ninety-nine million, seventy-eight thousand, six hundred sixty".