7438725 has 36 divisors (see below), whose sum is σ = 15230176. Its totient is φ = 3399840.

The previous prime is 7438721. The next prime is 7438727. The reversal of 7438725 is 5278347.

7438725 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 7438725 - 2² = 7438721 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7438725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7438721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 787 + ... + 3936.

Almost surely, 2^7438725 is an apocalyptic number.

7438725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7438725 is the 1575-th octagonal number.

It is an amenable number.

7438725 is an abundant number, since it is smaller than the sum of its proper divisors (7791451).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7438725 is a wasteful number, since it uses less digits than its factorization.

7438725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4746 (or 4738 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 7438725 is about 2727.4026105436. The cubic root of 7438725 is about 195.2088492164.

The spelling of 7438725 in words is "seven million, four hundred thirty-eight thousand, seven hundred twenty-five".