89943517 has 4 divisors (see below), whose sum is σ = 90036000. Its totient is φ = 89851036.

The previous prime is 89943509. The next prime is 89943523. The reversal of 89943517 is 71534998.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71534998 = 2 ⋅35767499.

It is a cyclic number.

It is not a de Polignac number, because 89943517 - 2³ = 89943509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89943577) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 44767 + ... + 46732.

It is an arithmetic number, because the mean of its divisors is an integer number (22509000).

Almost surely, 2^89943517 is an apocalyptic number.

It is an amenable number.

89943517 is a deficient number, since it is larger than the sum of its proper divisors (92483).

89943517 is an equidigital number, since it uses as much as digits as its factorization.

89943517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92482.

The product of its digits is 272160, while the sum is 46.

The square root of 89943517 is about 9483.8555978041. The cubic root of 89943517 is about 448.0467057093.

The spelling of 89943517 in words is "eighty-nine million, nine hundred forty-three thousand, five hundred seventeen".