18976953 has 12 divisors (see below), whose sum is σ = 26680560. Its totient is φ = 11964672.

The previous prime is 18976943. The next prime is 18976957. The reversal of 18976953 is 35967981.

It is not a de Polignac number, because 18976953 - 2⁵ = 18976921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18976957) 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, 32601 + ... + 33177.

It is an arithmetic number, because the mean of its divisors is an integer number (2223380).

Almost surely, 2^18976953 is an apocalyptic number.

It is an amenable number.

18976953 is a deficient number, since it is larger than the sum of its proper divisors (7703607).

18976953 is an frugal number, since it uses more digits than its factorization.

18976953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 599 counting only the distinct ones).

The product of its digits is 408240, while the sum is 48.

The square root of 18976953 is about 4356.2544691512. The cubic root of 18976953 is about 266.7322288450.

The spelling of 18976953 in words is "eighteen million, nine hundred seventy-six thousand, nine hundred fifty-three".