685713633 has 16 divisors (see below), whose sum is σ = 1004688576. Its totient is φ = 412547840.

The previous prime is 685713619. The next prime is 685713653. The reversal of 685713633 is 336317586.

685713633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 685713633 - 2⁴ = 685713617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (685713653) 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, 71316 + ... + 80357.

It is an arithmetic number, because the mean of its divisors is an integer number (62793036).

Almost surely, 2^685713633 is an apocalyptic number.

It is an amenable number.

685713633 is a deficient number, since it is larger than the sum of its proper divisors (318974943).

685713633 is a wasteful number, since it uses less digits than its factorization.

685713633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151824.

The product of its digits is 272160, while the sum is 42.

The square root of 685713633 is about 26186.1343653469. The cubic root of 685713633 is about 881.8219968218.

The spelling of 685713633 in words is "six hundred eighty-five million, seven hundred thirteen thousand, six hundred thirty-three".