685795269 has 4 divisors (see below), whose sum is σ = 914393696. Its totient is φ = 457196844.

The previous prime is 685795217. The next prime is 685795309. The reversal of 685795269 is 962597586.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 685795269 - 2¹³ = 685787077 is a prime.

It is a super-2 number, since 2×685795269² = 940630301965564722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685795169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114299209 + ... + 114299214.

It is an arithmetic number, because the mean of its divisors is an integer number (228598424).

Almost surely, 2^685795269 is an apocalyptic number.

It is an amenable number.

685795269 is a deficient number, since it is larger than the sum of its proper divisors (228598427).

685795269 is a wasteful number, since it uses less digits than its factorization.

685795269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228598426.

The product of its digits is 8164800, while the sum is 57.

The square root of 685795269 is about 26187.6930828204. The cubic root of 685795269 is about 881.8569898376.

The spelling of 685795269 in words is "six hundred eighty-five million, seven hundred ninety-five thousand, two hundred sixty-nine".