7980625 has 15 divisors (see below), whose sum is σ = 10061623. Its totient is φ = 6328000.

The previous prime is 7980617. The next prime is 7980629. The reversal of 7980625 is 5260897.

The square root of 7980625 is 2825.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 7800849 + 179776 = 2793^2 + 424^2 .

It is not a de Polignac number, because 7980625 - 2³ = 7980617 is a prime.

It is a Duffinian number.

7980625 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7980629) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 70569 + ... + 70681.

Almost surely, 2^7980625 is an apocalyptic number.

7980625 is the 2825-th square number.

7980625 is the 1413-rd centered octagonal number.

It is an amenable number.

7980625 is a deficient number, since it is larger than the sum of its proper divisors (2080998).

7980625 is an frugal number, since it uses more digits than its factorization.

7980625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The cubic root of 7980625 is about 199.8384111470.

The spelling of 7980625 in words is "seven million, nine hundred eighty thousand, six hundred twenty-five".