99678904 has 24 divisors (see below), whose sum is σ = 202383360. Its totient is φ = 46005024.

The previous prime is 99678881. The next prime is 99678923. The reversal of 99678904 is 40987699.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

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, 35512 + ... + 38215.

It is an arithmetic number, because the mean of its divisors is an integer number (8432640).

Almost surely, 2^99678904 is an apocalyptic number.

It is an amenable number.

99678904 is an abundant number, since it is smaller than the sum of its proper divisors (102704456).

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

99678904 is a wasteful number, since it uses less digits than its factorization.

99678904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73759 (or 73742 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 99678904 is about 9983.9322914371. The cubic root of 99678904 is about 463.6615521413.

The spelling of 99678904 in words is "ninety-nine million, six hundred seventy-eight thousand, nine hundred four".