18974763 has 16 divisors (see below), whose sum is σ = 28387840. Its totient is φ = 12525192.

The previous prime is 18974743. The next prime is 18974779. The reversal of 18974763 is 36747981.

It is not a de Polignac number, because 18974763 - 2⁵ = 18974731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18974743) 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, 631 + ... + 6192.

It is an arithmetic number, because the mean of its divisors is an integer number (1774240).

Almost surely, 2^18974763 is an apocalyptic number.

18974763 is a deficient number, since it is larger than the sum of its proper divisors (9413077).

18974763 is a wasteful number, since it uses less digits than its factorization.

18974763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6935 (or 6929 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 18974763 is about 4356.0030991725. The cubic root of 18974763 is about 266.7219678711.

The spelling of 18974763 in words is "eighteen million, nine hundred seventy-four thousand, seven hundred sixty-three".