89730540 has 72 divisors (see below), whose sum is σ = 286518960. Its totient is φ = 22667904.

The previous prime is 89730503. The next prime is 89730541. The reversal of 89730540 is 4503798.

89730540 is a `hidden beast` number, since 89 + 7 + 30 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 89730495 and 89730504.

It is not an unprimeable number, because it can be changed into a prime (89730541) 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, 9699 + ... + 16538.

It is an arithmetic number, because the mean of its divisors is an integer number (3979430).

Almost surely, 2^89730540 is an apocalyptic number.

It is an amenable number.

89730540 is an abundant number, since it is smaller than the sum of its proper divisors (196788420).

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

89730540 is a wasteful number, since it uses less digits than its factorization.

89730540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26271 (or 26266 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 89730540 is about 9472.6205455513. The cubic root of 89730540 is about 447.6927833684.

The spelling of 89730540 in words is "eighty-nine million, seven hundred thirty thousand, five hundred forty".