685397395 has 8 divisors (see below), whose sum is σ = 836417520. Its totient is φ = 539024160.

The previous prime is 685397327. The next prime is 685397399. The reversal of 685397395 is 593793586.

It is a happy number.

685397395 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 685397395 - 2²⁷ = 551179667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (685397399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1161396 + ... + 1161985.

It is an arithmetic number, because the mean of its divisors is an integer number (104552190).

Almost surely, 2^685397395 is an apocalyptic number.

685397395 is a deficient number, since it is larger than the sum of its proper divisors (151020125).

685397395 is a wasteful number, since it uses less digits than its factorization.

685397395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323445.

The product of its digits is 6123600, while the sum is 55.

The square root of 685397395 is about 26180.0953970760. The cubic root of 685397395 is about 881.6864161696.

The spelling of 685397395 in words is "six hundred eighty-five million, three hundred ninety-seven thousand, three hundred ninety-five".