89749998 has 32 divisors (see below), whose sum is σ = 214788000. Its totient is φ = 27615168.

The previous prime is 89749993. The next prime is 89750009. The reversal of 89749998 is 89994798.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89749993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63223 + ... + 64626.

It is an arithmetic number, because the mean of its divisors is an integer number (6712125).

Almost surely, 2^89749998 is an apocalyptic number.

89749998 is an abundant number, since it is smaller than the sum of its proper divisors (125038002).

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

89749998 is a wasteful number, since it uses less digits than its factorization.

89749998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127873 (or 127867 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 63.

The square root of 89749998 is about 9473.6475551922. The cubic root of 89749998 is about 447.7251416438.

The spelling of 89749998 in words is "eighty-nine million, seven hundred forty-nine thousand, nine hundred ninety-eight".