99831964 has 18 divisors (see below), whose sum is σ = 177237032. Its totient is φ = 49203000.

The previous prime is 99831911. The next prime is 99831967. The reversal of 99831964 is 46913899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99831967) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17689 + ... + 22639.

Almost surely, 2^99831964 is an apocalyptic number.

It is an amenable number.

99831964 is a deficient number, since it is larger than the sum of its proper divisors (77405068).

99831964 is a wasteful number, since it uses less digits than its factorization.

99831964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5097 (or 5024 counting only the distinct ones).

The product of its digits is 419904, while the sum is 49.

The square root of 99831964 is about 9991.5946675193. The cubic root of 99831964 is about 463.8987529288.

The spelling of 99831964 in words is "ninety-nine million, eight hundred thirty-one thousand, nine hundred sixty-four".