685287354 has 32 divisors (see below), whose sum is σ = 1418952960. Its totient is φ = 220499712.

The previous prime is 685287347. The next prime is 685287389. The reversal of 685287354 is 453782586.

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, 3942 + ... + 37230.

It is an arithmetic number, because the mean of its divisors is an integer number (44342280).

Almost surely, 2^685287354 is an apocalyptic number.

685287354 is an abundant number, since it is smaller than the sum of its proper divisors (733665606).

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

685287354 is a wasteful number, since it uses less digits than its factorization.

685287354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33414.

The product of its digits is 1612800, while the sum is 48.

The square root of 685287354 is about 26177.9936969967. The cubic root of 685287354 is about 881.6392285339.

The spelling of 685287354 in words is "six hundred eighty-five million, two hundred eighty-seven thousand, three hundred fifty-four".