99964512 has 36 divisors (see below), whose sum is σ = 284274900. Its totient is φ = 33321408.

The previous prime is 99964511. The next prime is 99964517. The reversal of 99964512 is 21546999.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99964511) 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, 173262 + ... + 173837.

It is an arithmetic number, because the mean of its divisors is an integer number (7896525).

Almost surely, 2^99964512 is an apocalyptic number.

It is an amenable number.

99964512 is an abundant number, since it is smaller than the sum of its proper divisors (184310388).

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

99964512 is a wasteful number, since it uses less digits than its factorization.

99964512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347115 (or 347104 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 99964512 is about 9998.2254425473. The cubic root of 99964512 is about 464.1039699634.

The spelling of 99964512 in words is "ninety-nine million, nine hundred sixty-four thousand, five hundred twelve".