9421725 has 24 divisors (see below), whose sum is σ = 15668640. Its totient is φ = 4995520.

The previous prime is 9421691. The next prime is 9421729. The reversal of 9421725 is 5271249.

9421725 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9421725 - 2⁶ = 9421661 is a prime.

9421725 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9421692 and 9421701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9421729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19942 + ... + 20408.

It is an arithmetic number, because the mean of its divisors is an integer number (652860).

Almost surely, 2^9421725 is an apocalyptic number.

It is an amenable number.

9421725 is a deficient number, since it is larger than the sum of its proper divisors (6246915).

9421725 is a wasteful number, since it uses less digits than its factorization.

9421725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749 (or 744 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 9421725 is about 3069.4828554660. The cubic root of 9421725 is about 211.2078916573.

The spelling of 9421725 in words is "nine million, four hundred twenty-one thousand, seven hundred twenty-five".