685460079 has 24 divisors (see below), whose sum is σ = 1014054912. Its totient is φ = 445977360.

The previous prime is 685460063. The next prime is 685460129. The reversal of 685460079 is 970064586.

It is not a de Polignac number, because 685460079 - 2⁴ = 685460063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685460029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159894 + ... + 164124.

It is an arithmetic number, because the mean of its divisors is an integer number (42252288).

Almost surely, 2^685460079 is an apocalyptic number.

685460079 is a deficient number, since it is larger than the sum of its proper divisors (328594833).

685460079 is a wasteful number, since it uses less digits than its factorization.

685460079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4667 (or 4664 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 685460079 is about 26181.2925387575. The cubic root of 685460079 is about 881.7132939814.

The spelling of 685460079 in words is "six hundred eighty-five million, four hundred sixty thousand, seventy-nine".