89559040 has 52 divisors (see below), whose sum is σ = 214964604. Its totient is φ = 35815424.

The previous prime is 89559037. The next prime is 89559049. The reversal of 89559040 is 4095598.

It can be written as a sum of positive squares in 2 ways, for example, as 41783296 + 47775744 = 6464^2 + 6912^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 89558984 and 89559002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89559049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18294 + ... + 22666.

Almost surely, 2^89559040 is an apocalyptic number.

89559040 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 89559040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107482302).

89559040 is an abundant number, since it is smaller than the sum of its proper divisors (125405564).

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

89559040 is an equidigital number, since it uses as much as digits as its factorization.

89559040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4402 (or 4380 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 89559040 is about 9463.5638107428. The cubic root of 89559040 is about 447.4073796850.

The spelling of 89559040 in words is "eighty-nine million, five hundred fifty-nine thousand, forty".