89896720 has 20 divisors (see below), whose sum is σ = 209010060. Its totient is φ = 35958656.

The previous prime is 89896711. The next prime is 89896739. The reversal of 89896720 is 2769898.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 58491904 + 31404816 = 7648^2 + 5604^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561775 + ... + 561934.

It is an arithmetic number, because the mean of its divisors is an integer number (10450503).

Almost surely, 2^89896720 is an apocalyptic number.

89896720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89896720 is an abundant number, since it is smaller than the sum of its proper divisors (119113340).

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

89896720 is a wasteful number, since it uses less digits than its factorization.

89896720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123722 (or 1123716 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 89896720 is about 9481.3880840307. The cubic root of 89896720 is about 447.9689870113.

It can be divided in two parts, 89 and 896720, that added together give a square (896809 = 947²).

The spelling of 89896720 in words is "eighty-nine million, eight hundred ninety-six thousand, seven hundred twenty".