18794743 has 12 divisors (see below), whose sum is σ = 21643848. Its totient is φ = 16183440.

The previous prime is 18794723. The next prime is 18794747. The reversal of 18794743 is 34749781.

It is a de Polignac number, because none of the positive numbers 2^k-18794743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18794743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18794747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1605 + ... + 6337.

It is an arithmetic number, because the mean of its divisors is an integer number (1803654).

Almost surely, 2^18794743 is an apocalyptic number.

18794743 is a deficient number, since it is larger than the sum of its proper divisors (2849105).

18794743 is a wasteful number, since it uses less digits than its factorization.

18794743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4782 (or 4763 counting only the distinct ones).

The product of its digits is 169344, while the sum is 43.

The square root of 18794743 is about 4335.2904170309. The cubic root of 18794743 is about 265.8757923509.

The spelling of 18794743 in words is "eighteen million, seven hundred ninety-four thousand, seven hundred forty-three".