99657132 has 48 divisors (see below), whose sum is σ = 239846880. Its totient is φ = 32182272.

The previous prime is 99657097. The next prime is 99657133. The reversal of 99657132 is 23175699.

It is not an unprimeable number, because it can be changed into a prime (99657133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172428 + ... + 173004.

It is an arithmetic number, because the mean of its divisors is an integer number (4996810).

Almost surely, 2^99657132 is an apocalyptic number.

It is an amenable number.

99657132 is an abundant number, since it is smaller than the sum of its proper divisors (140189748).

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

99657132 is a wasteful number, since it uses less digits than its factorization.

99657132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010 (or 1008 counting only the distinct ones).

The product of its digits is 102060, while the sum is 42.

The square root of 99657132 is about 9982.8418799458. The cubic root of 99657132 is about 463.6277918236.

It can be divided in two parts, 99 and 657132, that added together give a triangular number (657231 = T₁₁₄₆).

The spelling of 99657132 in words is "ninety-nine million, six hundred fifty-seven thousand, one hundred thirty-two".