99654980 has 24 divisors (see below), whose sum is σ = 210439320. Its totient is φ = 39640320.

The previous prime is 99654959. The next prime is 99655013. The reversal of 99654980 is 8945699.

It can be written as a sum of positive squares in 4 ways, for example, as 891136 + 98763844 = 944^2 + 9938^2 .

It is a super-2 number, since 2×99654980² = 19862230077600800, which contains 22 as substring.

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, 10145 + ... + 17384.

It is an arithmetic number, because the mean of its divisors is an integer number (8768305).

Almost surely, 2^99654980 is an apocalyptic number.

It is an amenable number.

99654980 is an abundant number, since it is smaller than the sum of its proper divisors (110784340).

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

99654980 is a wasteful number, since it uses less digits than its factorization.

99654980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27719 (or 27717 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 99654980 is about 9982.7340944252. The cubic root of 99654980 is about 463.6244546007.

The spelling of 99654980 in words is "ninety-nine million, six hundred fifty-four thousand, nine hundred eighty".