99748538 has 8 divisors (see below), whose sum is σ = 149961888. Its totient is φ = 49761244.

The previous prime is 99748511. The next prime is 99748541. The reversal of 99748538 is 83584799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 99748538.

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, 55406 + ... + 57177.

It is an arithmetic number, because the mean of its divisors is an integer number (18745236).

Almost surely, 2^99748538 is an apocalyptic number.

99748538 is the 5339-th centered heptagonal number.

99748538 is a deficient number, since it is larger than the sum of its proper divisors (50213350).

99748538 is a wasteful number, since it uses less digits than its factorization.

99748538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113028.

The product of its digits is 2177280, while the sum is 53.

The square root of 99748538 is about 9987.4189859042. The cubic root of 99748538 is about 463.7694957209.

The spelling of 99748538 in words is "ninety-nine million, seven hundred forty-eight thousand, five hundred thirty-eight".