89542980 has 36 divisors (see below), whose sum is σ = 271614252. Its totient is φ = 23878080.

The previous prime is 89542967. The next prime is 89542987. The reversal of 89542980 is 8924598.

It can be written as a sum of positive squares in 2 ways, for example, as 21678336 + 67864644 = 4656^2 + 8238^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 (89542987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248551 + ... + 248910.

Almost surely, 2^89542980 is an apocalyptic number.

It is an amenable number.

89542980 is an abundant number, since it is smaller than the sum of its proper divisors (182071272).

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

89542980 is a wasteful number, since it uses less digits than its factorization.

89542980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497476 (or 497471 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 89542980 is about 9462.7152551474. The cubic root of 89542980 is about 447.3806346013.

The spelling of 89542980 in words is "eighty-nine million, five hundred forty-two thousand, nine hundred eighty".