99420680 has 32 divisors (see below), whose sum is σ = 225469440. Its totient is φ = 39453120.

The previous prime is 99420679. The next prime is 99420683. The reversal of 99420680 is 8602499.

It is a super-2 number, since 2×99420680² = 19768943223324800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99420683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4706 + ... + 14865.

It is an arithmetic number, because the mean of its divisors is an integer number (7045920).

Almost surely, 2^99420680 is an apocalyptic number.

It is an amenable number.

99420680 is an abundant number, since it is smaller than the sum of its proper divisors (126048760).

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

99420680 is a wasteful number, since it uses less digits than its factorization.

99420680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19709 (or 19705 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 99420680 is about 9970.9919265838. The cubic root of 99420680 is about 463.2608251643.

The spelling of 99420680 in words is "ninety-nine million, four hundred twenty thousand, six hundred eighty".