99670128 has 20 divisors (see below), whose sum is σ = 257481288. Its totient is φ = 33223360.

The previous prime is 99670111. The next prime is 99670141. The reversal of 99670128 is 82107699.

It is a self number, because there is not a number n which added to its sum of digits gives 99670128.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1038183 + ... + 1038278.

Almost surely, 2^99670128 is an apocalyptic number.

It is an amenable number.

99670128 is an abundant number, since it is smaller than the sum of its proper divisors (157811160).

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

99670128 is a wasteful number, since it uses less digits than its factorization.

99670128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076472 (or 2076466 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 99670128 is about 9983.4927755771. The cubic root of 99670128 is about 463.6479444033.

The spelling of 99670128 in words is "ninety-nine million, six hundred seventy thousand, one hundred twenty-eight".