7929225 has 48 divisors (see below), whose sum is σ = 15445440. Its totient is φ = 3974400.

The previous prime is 7929217. The next prime is 7929253. The reversal of 7929225 is 5229297.

It is not a de Polignac number, because 7929225 - 2³ = 7929217 is a prime.

It is an Ulam number.

7929225 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7929225.

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, 11130 + ... + 11820.

It is an arithmetic number, because the mean of its divisors is an integer number (321780).

Almost surely, 2^7929225 is an apocalyptic number.

7929225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7929225 is a deficient number, since it is larger than the sum of its proper divisors (7516215).

7929225 is a wasteful number, since it uses less digits than its factorization.

7929225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727 (or 716 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 7929225 is about 2815.8879594188. The cubic root of 7929225 is about 199.4084604631.

The spelling of 7929225 in words is "seven million, nine hundred twenty-nine thousand, two hundred twenty-five".