99180628 has 12 divisors (see below), whose sum is σ = 173732832. Its totient is φ = 49542680.

The previous prime is 99180611. The next prime is 99180637. The reversal of 99180628 is 82608199.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7000 + ... + 15727.

It is an arithmetic number, because the mean of its divisors is an integer number (14477736).

Almost surely, 2^99180628 is an apocalyptic number.

It is an amenable number.

99180628 is a deficient number, since it is larger than the sum of its proper divisors (74552204).

99180628 is a wasteful number, since it uses less digits than its factorization.

99180628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23822 (or 23820 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 99180628 is about 9958.9471331060. The cubic root of 99180628 is about 462.8876757317.

The spelling of 99180628 in words is "ninety-nine million, one hundred eighty thousand, six hundred twenty-eight".