89998797 has 16 divisors (see below), whose sum is σ = 141565952. Its totient is φ = 49768560.

The previous prime is 89998789. The next prime is 89998807. The reversal of 89998797 is 79789998.

It is not a de Polignac number, because 89998797 - 2³ = 89998789 is a prime.

It is a super-2 number, since 2×89998797² = 16199566922894418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89997797) 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, 68473 + ... + 69774.

It is an arithmetic number, because the mean of its divisors is an integer number (8847872).

Almost surely, 2^89998797 is an apocalyptic number.

It is an amenable number.

89998797 is a deficient number, since it is larger than the sum of its proper divisors (51567155).

89998797 is a wasteful number, since it uses less digits than its factorization.

89998797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138288.

The product of its digits is 20575296, while the sum is 66.

The square root of 89998797 is about 9486.7695766262. The cubic root of 89998797 is about 448.1384779320.

The spelling of 89998797 in words is "eighty-nine million, nine hundred ninety-eight thousand, seven hundred ninety-seven".