7712225 has 6 divisors (see below), whose sum is σ = 9563190. Its totient is φ = 6169760.

The previous prime is 7712219. The next prime is 7712249. The reversal of 7712225 is 5222177.

It can be written as a sum of positive squares in 3 ways, for example, as 508369 + 7203856 = 713^2 + 2684^2 .

It is not a de Polignac number, because 7712225 - 2⁴ = 7712209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7712194 and 7712203.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154220 + ... + 154269.

It is an arithmetic number, because the mean of its divisors is an integer number (1593865).

Almost surely, 2^7712225 is an apocalyptic number.

It is an amenable number.

7712225 is a deficient number, since it is larger than the sum of its proper divisors (1850965).

7712225 is a wasteful number, since it uses less digits than its factorization.

7712225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308499 (or 308494 counting only the distinct ones).

The product of its digits is 1960, while the sum is 26.

The square root of 7712225 is about 2777.0893035695. The cubic root of 7712225 is about 197.5725311765.

The spelling of 7712225 in words is "seven million, seven hundred twelve thousand, two hundred twenty-five".