99524978 has 12 divisors (see below), whose sum is σ = 173661102. Its totient is φ = 42653520.

The previous prime is 99524963. The next prime is 99524981. The reversal of 99524978 is 87942599.

It can be written as a sum of positive squares in only one way, i.e., 98942809 + 582169 = 9947^2 + 763^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 507683 + ... + 507878.

Almost surely, 2^99524978 is an apocalyptic number.

99524978 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

99524978 is a deficient number, since it is larger than the sum of its proper divisors (74136124).

99524978 is a wasteful number, since it uses less digits than its factorization.

99524978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015577 (or 1015570 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 53.

The square root of 99524978 is about 9976.2206270712. The cubic root of 99524978 is about 463.4227642818.

The spelling of 99524978 in words is "ninety-nine million, five hundred twenty-four thousand, nine hundred seventy-eight".