99998970 has 32 divisors (see below), whose sum is σ = 240710400. Its totient is φ = 26587200.

The previous prime is 99998953. The next prime is 99998971. The reversal of 99998970 is 7989999.

It is not an unprimeable number, because it can be changed into a prime (99998971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5695 + ... + 15245.

It is an arithmetic number, because the mean of its divisors is an integer number (7522200).

Almost surely, 2^99998970 is an apocalyptic number.

99998970 is an abundant number, since it is smaller than the sum of its proper divisors (140711430).

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

99998970 is a wasteful number, since it uses less digits than its factorization.

99998970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9910.

The product of its (nonzero) digits is 3306744, while the sum is 60.

The square root of 99998970 is about 9999.9484998674. The cubic root of 99998970 is about 464.1572897436.

The spelling of 99998970 in words is "ninety-nine million, nine hundred ninety-eight thousand, nine hundred seventy".