89391873 has 12 divisors (see below), whose sum is σ = 120306480. Its totient is φ = 59038056.

The previous prime is 89391857. The next prime is 89391917. The reversal of 89391873 is 37819398.

It is not a de Polignac number, because 89391873 - 2⁴ = 89391857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89391473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192840 + ... + 193302.

It is an arithmetic number, because the mean of its divisors is an integer number (10025540).

Almost surely, 2^89391873 is an apocalyptic number.

It is an amenable number.

89391873 is a deficient number, since it is larger than the sum of its proper divisors (30914607).

89391873 is an equidigital number, since it uses as much as digits as its factorization.

89391873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068 (or 605 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 89391873 is about 9454.7275476346. The cubic root of 89391873 is about 447.1288359367.

The spelling of 89391873 in words is "eighty-nine million, three hundred ninety-one thousand, eight hundred seventy-three".