99506720 has 48 divisors (see below), whose sum is σ = 235713240. Its totient is φ = 39696384.

The previous prime is 99506711. The next prime is 99506777. The reversal of 99506720 is 2760599.

It can be written as a sum of positive squares in 4 ways, for example, as 89946256 + 9560464 = 9484^2 + 3092^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90494 + ... + 91586.

Almost surely, 2^99506720 is an apocalyptic number.

It is an amenable number.

99506720 is an abundant number, since it is smaller than the sum of its proper divisors (136206520).

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

99506720 is a wasteful number, since it uses less digits than its factorization.

99506720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677 (or 1669 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 99506720 is about 9975.3055091060. The cubic root of 99506720 is about 463.3944240250.

The spelling of 99506720 in words is "ninety-nine million, five hundred six thousand, seven hundred twenty".