89973870 has 64 divisors (see below), whose sum is σ = 248140800. Its totient is φ = 20452608.

The previous prime is 89973869. The next prime is 89973893. The reversal of 89973870 is 7837998.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40714 + ... + 42866.

It is an arithmetic number, because the mean of its divisors is an integer number (3877200).

Almost surely, 2^89973870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89973870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124070400).

89973870 is an abundant number, since it is smaller than the sum of its proper divisors (158166930).

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

89973870 is a wasteful number, since it uses less digits than its factorization.

89973870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 89973870 is about 9485.4557086099. The cubic root of 89973870 is about 448.0971004185.

The spelling of 89973870 in words is "eighty-nine million, nine hundred seventy-three thousand, eight hundred seventy".