99428684 has 18 divisors (see below), whose sum is σ = 176521212. Its totient is φ = 49004200.

The previous prime is 99428663. The next prime is 99428711. The reversal of 99428684 is 48682499.

It is a happy 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, 17699 + ... + 22629.

It is an arithmetic number, because the mean of its divisors is an integer number (9806734).

Almost surely, 2^99428684 is an apocalyptic number.

It is an amenable number.

99428684 is a deficient number, since it is larger than the sum of its proper divisors (77092528).

99428684 is a wasteful number, since it uses less digits than its factorization.

99428684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5077 (or 5004 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 99428684 is about 9971.3932827865. The cubic root of 99428684 is about 463.2732566495.

The spelling of 99428684 in words is "ninety-nine million, four hundred twenty-eight thousand, six hundred eighty-four".