89925791 has 4 divisors (see below), whose sum is σ = 93835632. Its totient is φ = 86015952.

The previous prime is 89925757. The next prime is 89925811. The reversal of 89925791 is 19752998.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 89925791 - 2¹⁸ = 89663647 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 (89925091) 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, 1954886 + ... + 1954931.

It is an arithmetic number, because the mean of its divisors is an integer number (23458908).

Almost surely, 2^89925791 is an apocalyptic number.

89925791 is a deficient number, since it is larger than the sum of its proper divisors (3909841).

89925791 is a wasteful number, since it uses less digits than its factorization.

89925791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909840.

The product of its digits is 408240, while the sum is 50.

The square root of 89925791 is about 9482.9210162270. The cubic root of 89925791 is about 448.0172702074.

The spelling of 89925791 in words is "eighty-nine million, nine hundred twenty-five thousand, seven hundred ninety-one".