685794699 has 6 divisors (see below), whose sum is σ = 990592356. Its totient is φ = 457196460.

The previous prime is 685794691. The next prime is 685794731. The reversal of 685794699 is 996497586.

It is a happy number.

It is not a de Polignac number, because 685794699 - 2³ = 685794691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (685794691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38099697 + ... + 38099714.

It is an arithmetic number, because the mean of its divisors is an integer number (165098726).

Almost surely, 2^685794699 is an apocalyptic number.

685794699 is a deficient number, since it is larger than the sum of its proper divisors (304797657).

685794699 is a wasteful number, since it uses less digits than its factorization.

685794699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76199417 (or 76199414 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 63.

The square root of 685794699 is about 26187.6821998435. The cubic root of 685794699 is about 881.8567455185.

The spelling of 685794699 in words is "six hundred eighty-five million, seven hundred ninety-four thousand, six hundred ninety-nine".