7730725 has 12 divisors (see below), whose sum is σ = 9642240. Its totient is φ = 6148400.

The previous prime is 7730719. The next prime is 7730731. The reversal of 7730725 is 5270377.

It is an interprime number because it is at equal distance from previous prime (7730719) and next prime (7730731).

It is not a de Polignac number, because 7730725 - 2⁹ = 7730213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3966 + ... + 5584.

It is an arithmetic number, because the mean of its divisors is an integer number (803520).

Almost surely, 2^7730725 is an apocalyptic number.

It is an amenable number.

7730725 is a deficient number, since it is larger than the sum of its proper divisors (1911515).

7730725 is a wasteful number, since it uses less digits than its factorization.

7730725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820 (or 1815 counting only the distinct ones).

The product of its (nonzero) digits is 10290, while the sum is 31.

The square root of 7730725 is about 2780.4181340223. The cubic root of 7730725 is about 197.7303832930.

The spelling of 7730725 in words is "seven million, seven hundred thirty thousand, seven hundred twenty-five".