89897040 has 100 divisors (see below), whose sum is σ = 312248244. Its totient is φ = 23970816.

The previous prime is 89897039. The next prime is 89897053. The reversal of 89897040 is 4079898.

It can be written as a sum of positive squares in 2 ways, for example, as 37015056 + 52881984 = 6084^2 + 7272^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 457 + ... + 13416.

Almost surely, 2^89897040 is an apocalyptic number.

89897040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89897040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156124122).

89897040 is an abundant number, since it is smaller than the sum of its proper divisors (222351204).

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

89897040 is a wasteful number, since it uses less digits than its factorization.

89897040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13898 (or 13883 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 89897040 is about 9481.4049591819. The cubic root of 89897040 is about 447.9695185469.

The spelling of 89897040 in words is "eighty-nine million, eight hundred ninety-seven thousand, forty".