18976 has 12 divisors (see below), whose sum is σ = 37422. Its totient is φ = 9472.

The previous prime is 18973. The next prime is 18979. The reversal of 18976 is 67981.

It is an interprime number because it is at equal distance from previous prime (18973) and next prime (18979).

It can be written as a sum of positive squares in only one way, i.e., 15376 + 3600 = 124^2 + 60^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265 + ... + 328.

2¹⁸⁹⁷⁶ is an apocalyptic number.

18976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18976 is a deficient number, since it is larger than the sum of its proper divisors (18446).

18976 is an equidigital number, since it uses as much as digits as its factorization.

18976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 595 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 18976 is about 137.7534028618. The cubic root of 18976 is about 26.6727763778.

The spelling of 18976 in words is "eighteen thousand, nine hundred seventy-six".