89200920 has 128 divisors (see below), whose sum is σ = 279417600. Its totient is φ = 22761984.

The previous prime is 89200907. The next prime is 89200939. The reversal of 89200920 is 2900298.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 304294 + ... + 304586.

It is an arithmetic number, because the mean of its divisors is an integer number (2182950).

Almost surely, 2^89200920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89200920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139708800).

89200920 is an abundant number, since it is smaller than the sum of its proper divisors (190216680).

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

89200920 is a wasteful number, since it uses less digits than its factorization.

89200920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 89200920 is about 9444.6238675767. The cubic root of 89200920 is about 446.8102332987.

The spelling of 89200920 in words is "eighty-nine million, two hundred thousand, nine hundred twenty".