7290625 has 12 divisors (see below), whose sum is σ = 9116604. Its totient is φ = 5830000.

The previous prime is 7290589. The next prime is 7290631. The reversal of 7290625 is 5260927.

It can be written as a sum of positive squares in 6 ways, for example, as 6431296 + 859329 = 2536^2 + 927^2 .

It is not a de Polignac number, because 7290625 - 2¹¹ = 7288577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1959 + ... + 4291.

It is an arithmetic number, because the mean of its divisors is an integer number (759717).

Almost surely, 2^7290625 is an apocalyptic number.

It is an amenable number.

7290625 is a deficient number, since it is larger than the sum of its proper divisors (1825979).

7290625 is an frugal number, since it uses more digits than its factorization.

7290625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358 (or 2338 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 7290625 is about 2700.1157382601. The cubic root of 7290625 is about 193.9046631860.

The spelling of 7290625 in words is "seven million, two hundred ninety thousand, six hundred twenty-five".