89881593 has 4 divisors (see below), whose sum is σ = 119842128. Its totient is φ = 59921060.

The previous prime is 89881591. The next prime is 89881619. The reversal of 89881593 is 39518898.

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.

It is a cyclic number.

It is not a de Polignac number, because 89881593 - 2¹ = 89881591 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89881591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14980263 + ... + 14980268.

It is an arithmetic number, because the mean of its divisors is an integer number (29960532).

Almost surely, 2^89881593 is an apocalyptic number.

It is an amenable number.

89881593 is a deficient number, since it is larger than the sum of its proper divisors (29960535).

89881593 is a wasteful number, since it uses less digits than its factorization.

89881593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29960534.

The product of its digits is 622080, while the sum is 51.

The square root of 89881593 is about 9480.5903297210. The cubic root of 89881593 is about 447.9438588902.

The spelling of 89881593 in words is "eighty-nine million, eight hundred eighty-one thousand, five hundred ninety-three".