18664714 has 8 divisors (see below), whose sum is σ = 28056960. Its totient is φ = 9312396.

The previous prime is 18664703. The next prime is 18664721. The reversal of 18664714 is 41746681.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8784 + ... + 10699.

It is an arithmetic number, because the mean of its divisors is an integer number (3507120).

Almost surely, 2^18664714 is an apocalyptic number.

18664714 is a deficient number, since it is larger than the sum of its proper divisors (9392246).

18664714 is a wasteful number, since it uses less digits than its factorization.

18664714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19964.

The product of its digits is 32256, while the sum is 37.

The square root of 18664714 is about 4320.2678157725. The cubic root of 18664714 is about 265.2612304749.

The spelling of 18664714 in words is "eighteen million, six hundred sixty-four thousand, seven hundred fourteen".