89797723 has 4 divisors (see below), whose sum is σ = 95079960. Its totient is φ = 84515488.

The previous prime is 89797709. The next prime is 89797789. The reversal of 89797723 is 32779798.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32779798 = 2 ⋅16389899.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89797723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89797703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2641093 + ... + 2641126.

It is an arithmetic number, because the mean of its divisors is an integer number (23769990).

Almost surely, 2^89797723 is an apocalyptic number.

89797723 is a deficient number, since it is larger than the sum of its proper divisors (5282237).

89797723 is a wasteful number, since it uses less digits than its factorization.

89797723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5282236.

The product of its digits is 1333584, while the sum is 52.

The square root of 89797723 is about 9476.1660496215. The cubic root of 89797723 is about 447.8044875919.

The spelling of 89797723 in words is "eighty-nine million, seven hundred ninety-seven thousand, seven hundred twenty-three".