18713672 has 16 divisors (see below), whose sum is σ = 35136240. Its totient is φ = 9344016.

The previous prime is 18713663. The next prime is 18713687. The reversal of 18713672 is 27631781.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7943 + ... + 10025.

It is an arithmetic number, because the mean of its divisors is an integer number (2196015).

Almost surely, 2^18713672 is an apocalyptic number.

It is an amenable number.

18713672 is a deficient number, since it is larger than the sum of its proper divisors (16422568).

18713672 is a wasteful number, since it uses less digits than its factorization.

18713672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212 (or 3208 counting only the distinct ones).

The product of its digits is 14112, while the sum is 35.

The square root of 18713672 is about 4325.9301889883. The cubic root of 18713672 is about 265.4929568770.

The spelling of 18713672 in words is "eighteen million, seven hundred thirteen thousand, six hundred seventy-two".