1863894 has 16 divisors (see below), whose sum is σ = 3746160. Its totient is φ = 618240.

The previous prime is 1863893. The next prime is 1863899. The reversal of 1863894 is 4983681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1863893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802 + ... + 2090.

It is an arithmetic number, because the mean of its divisors is an integer number (234135).

2^1863894 is an apocalyptic number.

1863894 is an abundant number, since it is smaller than the sum of its proper divisors (1882266).

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

1863894 is a wasteful number, since it uses less digits than its factorization.

1863894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535.

The product of its digits is 41472, while the sum is 39.

The square root of 1863894 is about 1365.2450329520. The cubic root of 1863894 is about 123.0666569762.

The spelling of 1863894 in words is "one million, eight hundred sixty-three thousand, eight hundred ninety-four".