1868685 has 48 divisors (see below), whose sum is σ = 3782016. Its totient is φ = 767232.

The previous prime is 1868677. The next prime is 1868687. The reversal of 1868685 is 5868681.

It is not a de Polignac number, because 1868685 - 2³ = 1868677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868687) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50487 + ... + 50523.

It is an arithmetic number, because the mean of its divisors is an integer number (78792).

2^1868685 is an apocalyptic number.

1868685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1868685 is an abundant number, since it is smaller than the sum of its proper divisors (1913331).

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

1868685 is a wasteful number, since it uses less digits than its factorization.

1868685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 65 counting only the distinct ones).

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

The square root of 1868685 is about 1366.9985369414. The cubic root of 1868685 is about 123.1720113024.

The spelling of 1868685 in words is "one million, eight hundred sixty-eight thousand, six hundred eighty-five".