685211460 has 48 divisors (see below), whose sum is σ = 1920307200. Its totient is φ = 182559744.

The previous prime is 685211447. The next prime is 685211489. The reversal of 685211460 is 64112586.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 72276 + ... + 81204.

It is an arithmetic number, because the mean of its divisors is an integer number (40006400).

Almost surely, 2^685211460 is an apocalyptic number.

685211460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

685211460 is an abundant number, since it is smaller than the sum of its proper divisors (1235095740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685211460 is a wasteful number, since it uses less digits than its factorization.

685211460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10220 (or 10218 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 685211460 is about 26176.5440805313. The cubic root of 685211460 is about 881.6066808260.

The spelling of 685211460 in words is "six hundred eighty-five million, two hundred eleven thousand, four hundred sixty".