1994863 has 8 divisors (see below), whose sum is σ = 2163168. Its totient is φ = 1828704.

The previous prime is 1994843. The next prime is 1994869. The reversal of 1994863 is 3684991.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1994863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1806 + ... + 2692.

It is an arithmetic number, because the mean of its divisors is an integer number (270396).

2^1994863 is an apocalyptic number.

1994863 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1994863 is a deficient number, since it is larger than the sum of its proper divisors (168305).

1994863 is a wasteful number, since it uses less digits than its factorization.

1994863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073.

The product of its digits is 46656, while the sum is 40.

The square root of 1994863 is about 1412.3961908756. The cubic root of 1994863 is about 125.8841422620.

The spelling of 1994863 in words is "one million, nine hundred ninety-four thousand, eight hundred sixty-three".