18821714 has 8 divisors (see below), whose sum is σ = 28833408. Its totient is φ = 9210580.

The previous prime is 18821711. The next prime is 18821717. The reversal of 18821714 is 41712881.

It is an interprime number because it is at equal distance from previous prime (18821711) and next prime (18821717).

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18821711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100022 + ... + 100209.

It is an arithmetic number, because the mean of its divisors is an integer number (3604176).

Almost surely, 2^18821714 is an apocalyptic number.

18821714 is a deficient number, since it is larger than the sum of its proper divisors (10011694).

18821714 is a wasteful number, since it uses less digits than its factorization.

18821714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200280.

The product of its digits is 3584, while the sum is 32.

The square root of 18821714 is about 4338.3999354601. The cubic root of 18821714 is about 266.0029113820.

The spelling of 18821714 in words is "eighteen million, eight hundred twenty-one thousand, seven hundred fourteen".