99664276 has 24 divisors (see below), whose sum is σ = 180069120. Its totient is φ = 48235200.

The previous prime is 99664261. The next prime is 99664277. The reversal of 99664276 is 67246699.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99664277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19165 + ... + 23803.

It is an arithmetic number, because the mean of its divisors is an integer number (7502880).

Almost surely, 2^99664276 is an apocalyptic number.

It is an amenable number.

99664276 is a deficient number, since it is larger than the sum of its proper divisors (80404844).

99664276 is a wasteful number, since it uses less digits than its factorization.

99664276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4815 (or 4813 counting only the distinct ones).

The product of its digits is 979776, while the sum is 49.

The square root of 99664276 is about 9983.1996874750. The cubic root of 99664276 is about 463.6388700667.

The spelling of 99664276 in words is "ninety-nine million, six hundred sixty-four thousand, two hundred seventy-six".