89724725 has 48 divisors (see below), whose sum is σ = 125670528. Its totient is φ = 63191040.

The previous prime is 89724697. The next prime is 89724737. The reversal of 89724725 is 52742798.

It is not a de Polignac number, because 89724725 - 2⁸ = 89724469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 654857 + ... + 654993.

It is an arithmetic number, because the mean of its divisors is an integer number (2618136).

Almost surely, 2^89724725 is an apocalyptic number.

89724725 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

89724725 is a deficient number, since it is larger than the sum of its proper divisors (35945803).

89724725 is a wasteful number, since it uses less digits than its factorization.

89724725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 249 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The square root of 89724725 is about 9472.3136033389. The cubic root of 89724725 is about 447.6831122287.

The spelling of 89724725 in words is "eighty-nine million, seven hundred twenty-four thousand, seven hundred twenty-five".