709745685 has 32 divisors (see below), whose sum is σ = 1251123840. Its totient is φ = 340704000.

The previous prime is 709745669. The next prime is 709745693. The reversal of 709745685 is 586547907.

709745685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 709745685 - 2⁴ = 709745669 is a prime.

It is a super-2 number, since 2×709745685² = 1007477874752238450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4630 + ... + 37959.

It is an arithmetic number, because the mean of its divisors is an integer number (39097620).

Almost surely, 2^709745685 is an apocalyptic number.

It is an amenable number.

709745685 is a deficient number, since it is larger than the sum of its proper divisors (541378155).

709745685 is a wasteful number, since it uses less digits than its factorization.

709745685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42709.

The product of its (nonzero) digits is 2116800, while the sum is 51.

The square root of 709745685 is about 26641.0526256002. The cubic root of 709745685 is about 892.0056124678.

The spelling of 709745685 in words is "seven hundred nine million, seven hundred forty-five thousand, six hundred eighty-five".