99021264 has 20 divisors (see below), whose sum is σ = 255805056. Its totient is φ = 33007072.

The previous prime is 99021253. The next prime is 99021281. The reversal of 99021264 is 46212099.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031424 + ... + 1031519.

Almost surely, 2^99021264 is an apocalyptic number.

It is an amenable number.

99021264 is an abundant number, since it is smaller than the sum of its proper divisors (156783792).

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

99021264 is a wasteful number, since it uses less digits than its factorization.

99021264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062954 (or 2062948 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 99021264 is about 9950.9428698993. The cubic root of 99021264 is about 462.6396193036.

The spelling of 99021264 in words is "ninety-nine million, twenty-one thousand, two hundred sixty-four".