1868986 has 8 divisors (see below), whose sum is σ = 3204000. Its totient is φ = 800988.

The previous prime is 1868983. The next prime is 1868987. The reversal of 1868986 is 6898681.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1868983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66736 + ... + 66763.

It is an arithmetic number, because the mean of its divisors is an integer number (400500).

2^1868986 is an apocalyptic number.

1868986 is a deficient number, since it is larger than the sum of its proper divisors (1335014).

1868986 is a wasteful number, since it uses less digits than its factorization.

1868986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133508.

The product of its digits is 165888, while the sum is 46.

The square root of 1868986 is about 1367.1086277250. The cubic root of 1868986 is about 123.1786242922.

The spelling of 1868986 in words is "one million, eight hundred sixty-eight thousand, nine hundred eighty-six".