7428925 has 12 divisors (see below), whose sum is σ = 10528096. Its totient is φ = 5094000.

The previous prime is 7428917. The next prime is 7428929. The reversal of 7428925 is 5298247.

It is not a de Polignac number, because 7428925 - 2³ = 7428917 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 (7428929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21051 + ... + 21400.

Almost surely, 2^7428925 is an apocalyptic number.

It is an amenable number.

7428925 is a deficient number, since it is larger than the sum of its proper divisors (3099171).

7428925 is a wasteful number, since it uses less digits than its factorization.

7428925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42468 (or 42463 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 7428925 is about 2725.6054373295. The cubic root of 7428925 is about 195.1230868741.

It can be divided in two parts, 7 and 428925, that multiplied together give a triangular number (3002475 = T₂₄₅₀).

The spelling of 7428925 in words is "seven million, four hundred twenty-eight thousand, nine hundred twenty-five".