99983538 has 16 divisors (see below), whose sum is σ = 222185760. Its totient is φ = 33327828.

The previous prime is 99983489. The next prime is 99983563. The reversal of 99983538 is 83538999.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1851547 = 99983538 / (9 + 9 + 9 + 8 + 3 + 5 + 3 + 8).

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, 925720 + ... + 925827.

It is an arithmetic number, because the mean of its divisors is an integer number (13886610).

Almost surely, 2^99983538 is an apocalyptic number.

99983538 is an abundant number, since it is smaller than the sum of its proper divisors (122202222).

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

99983538 is a wasteful number, since it uses less digits than its factorization.

99983538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851558 (or 1851552 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 99983538 is about 9999.1768661225. The cubic root of 99983538 is about 464.1334120184.

The spelling of 99983538 in words is "ninety-nine million, nine hundred eighty-three thousand, five hundred thirty-eight".