89911975 has 12 divisors (see below), whose sum is σ = 114211440. Its totient is φ = 70174400.

The previous prime is 89911967. The next prime is 89912003. The reversal of 89911975 is 57911998.

It is a happy number.

It is not a de Polignac number, because 89911975 - 2³ = 89911967 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42835 + ... + 44884.

It is an arithmetic number, because the mean of its divisors is an integer number (9517620).

Almost surely, 2^89911975 is an apocalyptic number.

89911975 is a deficient number, since it is larger than the sum of its proper divisors (24299465).

89911975 is a wasteful number, since it uses less digits than its factorization.

89911975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87770 (or 87765 counting only the distinct ones).

The product of its digits is 204120, while the sum is 49.

The square root of 89911975 is about 9482.1925207201. The cubic root of 89911975 is about 447.9943249042.

The spelling of 89911975 in words is "eighty-nine million, nine hundred eleven thousand, nine hundred seventy-five".