18713964 has 24 divisors (see below), whose sum is σ = 43761088. Its totient is φ = 6224400.

The previous prime is 18713963. The next prime is 18714011. The reversal of 18713964 is 46931781.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18713963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5139 + ... + 7989.

Almost surely, 2^18713964 is an apocalyptic number.

It is an amenable number.

18713964 is an abundant number, since it is smaller than the sum of its proper divisors (25047124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18713964 is a wasteful number, since it uses less digits than its factorization.

18713964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405 (or 3403 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 18713964 is about 4325.9639388233. The cubic root of 18713964 is about 265.4943377487.

The spelling of 18713964 in words is "eighteen million, seven hundred thirteen thousand, nine hundred sixty-four".