89577540 has 72 divisors (see below), whose sum is σ = 292627608. Its totient is φ = 22049280.

The previous prime is 89577529. The next prime is 89577541. The reversal of 89577540 is 4577598.

It can be written as a sum of positive squares in 4 ways, for example, as 16064064 + 73513476 = 4008^2 + 8574^2 .

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

It is not an unprimeable number, because it can be changed into a prime (89577541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16801 + ... + 21480.

Almost surely, 2^89577540 is an apocalyptic number.

It is an amenable number.

89577540 is an abundant number, since it is smaller than the sum of its proper divisors (203050068).

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

89577540 is a wasteful number, since it uses less digits than its factorization.

89577540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38309 (or 38304 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 89577540 is about 9464.5411933173. The cubic root of 89577540 is about 447.4381841936.

The spelling of 89577540 in words is "eighty-nine million, five hundred seventy-seven thousand, five hundred forty".