1685868 has 24 divisors (see below), whose sum is σ = 4041072. Its totient is φ = 546624.

The previous prime is 1685863. The next prime is 1685869. The reversal of 1685868 is 8685861.

It is not an unprimeable number, because it can be changed into a prime (1685861) 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, 1455 + ... + 2342.

It is an arithmetic number, because the mean of its divisors is an integer number (168378).

2^1685868 is an apocalyptic number.

It is an amenable number.

1685868 is an abundant number, since it is smaller than the sum of its proper divisors (2355204).

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

1685868 is a wasteful number, since it uses less digits than its factorization.

1685868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841 (or 3839 counting only the distinct ones).

The product of its digits is 92160, while the sum is 42.

The square root of 1685868 is about 1298.4097966359. The cubic root of 1685868 is about 119.0166866886.

The spelling of 1685868 in words is "one million, six hundred eighty-five thousand, eight hundred sixty-eight".