89911793 has 4 divisors (see below), whose sum is σ = 95200740. Its totient is φ = 84622848.

The previous prime is 89911777. The next prime is 89911841. The reversal of 89911793 is 39711998.

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: 39711998 = 2 ⋅19855999.

It can be written as a sum of positive squares in 2 ways, for example, as 81577024 + 8334769 = 9032^2 + 2887^2 .

It is a cyclic number.

It is not a de Polignac number, because 89911793 - 2⁴ = 89911777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89916793) 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, 2644448 + ... + 2644481.

It is an arithmetic number, because the mean of its divisors is an integer number (23800185).

Almost surely, 2^89911793 is an apocalyptic number.

It is an amenable number.

89911793 is a deficient number, since it is larger than the sum of its proper divisors (5288947).

89911793 is a wasteful number, since it uses less digits than its factorization.

89911793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288946.

The product of its digits is 122472, while the sum is 47.

The square root of 89911793 is about 9482.1829237787. The cubic root of 89911793 is about 447.9940226270.

The spelling of 89911793 in words is "eighty-nine million, nine hundred eleven thousand, seven hundred ninety-three".