1894463 has 4 divisors (see below), whose sum is σ = 2005920. Its totient is φ = 1783008.

The previous prime is 1894439. The next prime is 1894481. The reversal of 1894463 is 3644981.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1894463 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 (1894063) 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 3 ways as a sum of consecutive naturals, for example, 55703 + ... + 55736.

It is an arithmetic number, because the mean of its divisors is an integer number (501480).

2^1894463 is an apocalyptic number.

1894463 is a deficient number, since it is larger than the sum of its proper divisors (111457).

1894463 is a wasteful number, since it uses less digits than its factorization.

1894463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111456.

The product of its digits is 20736, while the sum is 35.

The square root of 1894463 is about 1376.3949287904. The cubic root of 1894463 is about 123.7358015203.

The spelling of 1894463 in words is "one million, eight hundred ninety-four thousand, four hundred sixty-three".