18797463 has 24 divisors (see below), whose sum is σ = 28753920. Its totient is φ = 11808720.

The previous prime is 18797447. The next prime is 18797483. The reversal of 18797463 is 36479781.

18797463 is a `hidden beast` number, since 187 + 9 + 7 + 463 = 666.

It is not a de Polignac number, because 18797463 - 2⁴ = 18797447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18797483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14058 + ... + 15336.

It is an arithmetic number, because the mean of its divisors is an integer number (1198080).

Almost surely, 2^18797463 is an apocalyptic number.

18797463 is a deficient number, since it is larger than the sum of its proper divisors (9956457).

18797463 is a wasteful number, since it uses less digits than its factorization.

18797463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379 (or 1376 counting only the distinct ones).

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

The square root of 18797463 is about 4335.6041101558. The cubic root of 18797463 is about 265.8886176973. Note that the first 3 decimals are identical.

The spelling of 18797463 in words is "eighteen million, seven hundred ninety-seven thousand, four hundred sixty-three".