7725705 has 16 divisors (see below), whose sum is σ = 13312320. Its totient is φ = 3803328.

The previous prime is 7725689. The next prime is 7725709. The reversal of 7725705 is 5075277.

It is not a de Polignac number, because 7725705 - 2⁴ = 7725689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7725709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19615 + ... + 20004.

It is an arithmetic number, because the mean of its divisors is an integer number (832020).

Almost surely, 2^7725705 is an apocalyptic number.

It is an amenable number.

7725705 is a deficient number, since it is larger than the sum of its proper divisors (5586615).

7725705 is a wasteful number, since it uses less digits than its factorization.

7725705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39640.

The product of its (nonzero) digits is 17150, while the sum is 33.

The square root of 7725705 is about 2779.5152455059. The cubic root of 7725705 is about 197.6875748262.

The spelling of 7725705 in words is "seven million, seven hundred twenty-five thousand, seven hundred five".