18974793 has 16 divisors (see below), whose sum is σ = 26966016. Its totient is φ = 11840400.

The previous prime is 18974783. The next prime is 18974797. The reversal of 18974793 is 39747981.

It is not a de Polignac number, because 18974793 - 2⁹ = 18974281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18974797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318 + ... + 6168.

It is an arithmetic number, because the mean of its divisors is an integer number (1685376).

Almost surely, 2^18974793 is an apocalyptic number.

It is an amenable number.

18974793 is a deficient number, since it is larger than the sum of its proper divisors (7991223).

18974793 is a wasteful number, since it uses less digits than its factorization.

18974793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5924.

The product of its digits is 381024, while the sum is 48.

The square root of 18974793 is about 4356.0065426948. The cubic root of 18974793 is about 266.7221084378.

The spelling of 18974793 in words is "eighteen million, nine hundred seventy-four thousand, seven hundred ninety-three".