685338485 has 16 divisors (see below), whose sum is σ = 886273920. Its totient is φ = 505750080.

The previous prime is 685338473. The next prime is 685338503. The reversal of 685338485 is 584833586.

It is not a de Polignac number, because 685338485 - 2²⁸ = 416903029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129950 + ... + 135120.

It is an arithmetic number, because the mean of its divisors is an integer number (55392120).

Almost surely, 2^685338485 is an apocalyptic number.

685338485 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

685338485 is a deficient number, since it is larger than the sum of its proper divisors (200935435).

685338485 is a wasteful number, since it uses less digits than its factorization.

685338485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7228.

The product of its digits is 2764800, while the sum is 50.

The square root of 685338485 is about 26178.9702815065. The cubic root of 685338485 is about 881.6611550897.

The spelling of 685338485 in words is "six hundred eighty-five million, three hundred thirty-eight thousand, four hundred eighty-five".