18714917 has 8 divisors (see below), whose sum is σ = 20805120. Its totient is φ = 16717680.

The previous prime is 18714911. The next prime is 18714919. The reversal of 18714917 is 71941781.

It is a happy number.

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

It is not a de Polignac number, because 18714917 - 2¹² = 18710821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18714911) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22817 + ... + 23622.

It is an arithmetic number, because the mean of its divisors is an integer number (2600640).

Almost surely, 2^18714917 is an apocalyptic number.

It is an amenable number.

18714917 is a deficient number, since it is larger than the sum of its proper divisors (2090203).

18714917 is a wasteful number, since it uses less digits than its factorization.

18714917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46483.

The product of its digits is 14112, while the sum is 38.

The square root of 18714917 is about 4326.0740862819. The cubic root of 18714917 is about 265.4988443978.

The spelling of 18714917 in words is "eighteen million, seven hundred fourteen thousand, nine hundred seventeen".