89975 has 12 divisors (see below), whose sum is σ = 115320. Its totient is φ = 69600.

The previous prime is 89963. The next prime is 89977. The reversal of 89975 is 57998.

It is not a de Polignac number, because 89975 - 2⁴ = 89959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89977) 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 11 ways as a sum of consecutive naturals, for example, 1445 + ... + 1505.

It is an arithmetic number, because the mean of its divisors is an integer number (9610).

2⁸⁹⁹⁷⁵ is an apocalyptic number.

89975 is a deficient number, since it is larger than the sum of its proper divisors (25345).

89975 is a wasteful number, since it uses less digits than its factorization.

89975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 125 counting only the distinct ones).

The product of its digits is 22680, while the sum is 38.

The square root of 89975 is about 299.9583304394. The cubic root of 89975 is about 44.8098976325.

It can be divided in two parts, 8 and 9975, that multiplied together give a triangular number (79800 = T₃₉₉).

The spelling of 89975 in words is "eighty-nine thousand, nine hundred seventy-five".