98997899 has 16 divisors (see below), whose sum is σ = 132921600. Its totient is φ = 71206560.

The previous prime is 98997881. The next prime is 98997917. The reversal of 98997899 is 99879989.

It is an interprime number because it is at equal distance from previous prime (98997881) and next prime (98997917).

It is a cyclic number.

It is not a de Polignac number, because 98997899 - 2²⁴ = 82220683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (98997869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48449 + ... + 50450.

It is an arithmetic number, because the mean of its divisors is an integer number (8307600).

Almost surely, 2^98997899 is an apocalyptic number.

98997899 is a deficient number, since it is larger than the sum of its proper divisors (33923701).

98997899 is a wasteful number, since it uses less digits than its factorization.

98997899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98930.

The product of its digits is 26453952, while the sum is 68.

The square root of 98997899 is about 9949.7687912835. The cubic root of 98997899 is about 462.6032283825.

The spelling of 98997899 in words is "ninety-eight million, nine hundred ninety-seven thousand, eight hundred ninety-nine".