99678892 has 12 divisors (see below), whose sum is σ = 174796776. Its totient is φ = 49736960.

The previous prime is 99678881. The next prime is 99678923. The reversal of 99678892 is 29887699.

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, 23413 + ... + 27340.

It is an arithmetic number, because the mean of its divisors is an integer number (14566398).

Almost surely, 2^99678892 is an apocalyptic number.

It is an amenable number.

99678892 is a deficient number, since it is larger than the sum of its proper divisors (75117884).

99678892 is a wasteful number, since it uses less digits than its factorization.

99678892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51248 (or 51246 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 58.

The square root of 99678892 is about 9983.9316904714. The cubic root of 99678892 is about 463.6615335350.

The spelling of 99678892 in words is "ninety-nine million, six hundred seventy-eight thousand, eight hundred ninety-two".