89542990 has 32 divisors (see below), whose sum is σ = 165400704. Its totient is φ = 34886400.

The previous prime is 89542987. The next prime is 89542993. The reversal of 89542990 is 9924598.

It is an interprime number because it is at equal distance from previous prime (89542987) and next prime (89542993).

It is a self number, because there is not a number n which added to its sum of digits gives 89542990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89542993) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 148690 + ... + 149290.

It is an arithmetic number, because the mean of its divisors is an integer number (5168772).

Almost surely, 2^89542990 is an apocalyptic number.

89542990 is a deficient number, since it is larger than the sum of its proper divisors (75857714).

89542990 is a wasteful number, since it uses less digits than its factorization.

89542990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 89542990 is about 9462.7157835370. The cubic root of 89542990 is about 447.3806512555.

The spelling of 89542990 in words is "eighty-nine million, five hundred forty-two thousand, nine hundred ninety".