685434395 has 8 divisors (see below), whose sum is σ = 824595504. Its totient is φ = 546964704.

The previous prime is 685434391. The next prime is 685434413. The reversal of 685434395 is 593434586.

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

It is a cyclic number.

It is not a de Polignac number, because 685434395 - 2² = 685434391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685434391) 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, 170669 + ... + 174638.

It is an arithmetic number, because the mean of its divisors is an integer number (103074438).

Almost surely, 2^685434395 is an apocalyptic number.

685434395 is a deficient number, since it is larger than the sum of its proper divisors (139161109).

685434395 is a wasteful number, since it uses less digits than its factorization.

685434395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345709.

The product of its digits is 1555200, while the sum is 47.

The square root of 685434395 is about 26180.8020312595. The cubic root of 685434395 is about 881.7022813259.

The spelling of 685434395 in words is "six hundred eighty-five million, four hundred thirty-four thousand, three hundred ninety-five".