99571632 has 40 divisors (see below), whose sum is σ = 259644096. Its totient is φ = 32878656.

The previous prime is 99571631. The next prime is 99571643. The reversal of 99571632 is 23617599.

It is not an unprimeable number, because it can be changed into a prime (99571631) 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 7 ways as a sum of consecutive naturals, for example, 4558 + ... + 14829.

Almost surely, 2^99571632 is an apocalyptic number.

It is an amenable number.

99571632 is an abundant number, since it is smaller than the sum of its proper divisors (160072464).

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

99571632 is a wasteful number, since it uses less digits than its factorization.

99571632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19505 (or 19499 counting only the distinct ones).

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

The square root of 99571632 is about 9978.5586133469. The cubic root of 99571632 is about 463.4951653635.

It can be divided in two parts, 995 and 71632, that added together give a palindrome (72627).

The spelling of 99571632 in words is "ninety-nine million, five hundred seventy-one thousand, six hundred thirty-two".