99420998 has 16 divisors (see below), whose sum is σ = 162173664. Its totient is φ = 45521280.

The previous prime is 99420949. The next prime is 99421093. The reversal of 99420998 is 89902499.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38258 + ... + 40773.

It is an arithmetic number, because the mean of its divisors is an integer number (10135854).

Almost surely, 2^99420998 is an apocalyptic number.

99420998 is a deficient number, since it is larger than the sum of its proper divisors (62752666).

99420998 is a wasteful number, since it uses less digits than its factorization.

99420998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79087.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 99420998 is about 9971.0078728281. The cubic root of 99420998 is about 463.2613190816.

The spelling of 99420998 in words is "ninety-nine million, four hundred twenty thousand, nine hundred ninety-eight".