685828263 has 32 divisors (see below), whose sum is σ = 1008599040. Its totient is φ = 412715520.

The previous prime is 685828243. The next prime is 685828271. The reversal of 685828263 is 362828586.

It is not a de Polignac number, because 685828263 - 2¹⁰ = 685827239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685828223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131418 + ... + 136536.

It is an arithmetic number, because the mean of its divisors is an integer number (31518720).

Almost surely, 2^685828263 is an apocalyptic number.

685828263 is a deficient number, since it is larger than the sum of its proper divisors (322770777).

685828263 is a wasteful number, since it uses less digits than its factorization.

685828263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5247.

The product of its digits is 1105920, while the sum is 48.

The square root of 685828263 is about 26188.3230276396. The cubic root of 685828263 is about 881.8711318244.

The spelling of 685828263 in words is "six hundred eighty-five million, eight hundred twenty-eight thousand, two hundred sixty-three".