9228725 has 24 divisors (see below), whose sum is σ = 12835488. Its totient is φ = 6523200.

The previous prime is 9228719. The next prime is 9228743. The reversal of 9228725 is 5278229.

9228725 = 316² + 317² + ... + 389².

9228725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9228725 - 2¹² = 9224629 is a prime.

It is a Duffinian number.

Its product of digits (20160) is a multiple of the sum of its prime divisors (960).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9722 + ... + 10628.

It is an arithmetic number, because the mean of its divisors is an integer number (534812).

Almost surely, 2^9228725 is an apocalyptic number.

It is an amenable number.

9228725 is a deficient number, since it is larger than the sum of its proper divisors (3606763).

9228725 is a wasteful number, since it uses less digits than its factorization.

9228725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965 (or 960 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 9228725 is about 3037.8816632647. The cubic root of 9228725 is about 209.7557629173.

The spelling of 9228725 in words is "nine million, two hundred twenty-eight thousand, seven hundred twenty-five".