99538475 has 6 divisors (see below), whose sum is σ = 123427740. Its totient is φ = 79630760.

The previous prime is 99538463. The next prime is 99538477. The reversal of 99538475 is 57483599.

It is not a de Polignac number, because 99538475 - 2⁴ = 99538459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99538477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1990745 + ... + 1990794.

It is an arithmetic number, because the mean of its divisors is an integer number (20571290).

Almost surely, 2^99538475 is an apocalyptic number.

99538475 is a deficient number, since it is larger than the sum of its proper divisors (23889265).

99538475 is a wasteful number, since it uses less digits than its factorization.

99538475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3981549 (or 3981544 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 50.

The square root of 99538475 is about 9976.8970627144. The cubic root of 99538475 is about 463.4437122369.

The spelling of 99538475 in words is "ninety-nine million, five hundred thirty-eight thousand, four hundred seventy-five".