99368978 has 16 divisors (see below), whose sum is σ = 159275160. Its totient is φ = 46331136.

The previous prime is 99368963. The next prime is 99368989. The reversal of 99368978 is 87986399.

It can be written as a sum of positive squares in 4 ways, for example, as 99341089 + 27889 = 9967^2 + 167^2 .

It is a super-3 number, since 3×99368978³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9701 + ... + 17112.

Almost surely, 2^99368978 is an apocalyptic number.

99368978 is a deficient number, since it is larger than the sum of its proper divisors (59906182).

99368978 is a wasteful number, since it uses less digits than its factorization.

99368978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26941.

The product of its digits is 5878656, while the sum is 59.

The square root of 99368978 is about 9968.3989687412. The cubic root of 99368978 is about 463.1805076547.

The spelling of 99368978 in words is "ninety-nine million, three hundred sixty-eight thousand, nine hundred seventy-eight".