99664776 has 32 divisors (see below), whose sum is σ = 276847200. Its totient is φ = 33221520.

The previous prime is 99664753. The next prime is 99664777. The reversal of 99664776 is 67746699.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (99664777) 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, 230490 + ... + 230921.

It is an arithmetic number, because the mean of its divisors is an integer number (8651475).

Almost surely, 2^99664776 is an apocalyptic number.

It is an amenable number.

99664776 is an abundant number, since it is smaller than the sum of its proper divisors (177182424).

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

99664776 is a wasteful number, since it uses less digits than its factorization.

99664776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461426 (or 461416 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 54.

The square root of 99664776 is about 9983.2247295150. The cubic root of 99664776 is about 463.6396453999.

The spelling of 99664776 in words is "ninety-nine million, six hundred sixty-four thousand, seven hundred seventy-six".