1983868 has 6 divisors (see below), whose sum is σ = 3471776. Its totient is φ = 991932.

The previous prime is 1983859. The next prime is 1983871. The reversal of 1983868 is 8683891.

It is a happy number.

It is a plaindrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247980 + ... + 247987.

2^1983868 is an apocalyptic number.

It is an amenable number.

1983868 is a deficient number, since it is larger than the sum of its proper divisors (1487908).

1983868 is a wasteful number, since it uses less digits than its factorization.

1983868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495971 (or 495969 counting only the distinct ones).

The product of its digits is 82944, while the sum is 43.

The square root of 1983868 is about 1408.4984913020. The cubic root of 1983868 is about 125.6524393252.

The spelling of 1983868 in words is "one million, nine hundred eighty-three thousand, eight hundred sixty-eight".