18861714 has 16 divisors (see below), whose sum is σ = 41915040. Its totient is φ = 6287220.

The previous prime is 18861709. The next prime is 18861719. The reversal of 18861714 is 41716881.

It is an interprime number because it is at equal distance from previous prime (18861709) and next prime (18861719).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18861719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174592 + ... + 174699.

It is an arithmetic number, because the mean of its divisors is an integer number (2619690).

Almost surely, 2^18861714 is an apocalyptic number.

18861714 is an abundant number, since it is smaller than the sum of its proper divisors (23053326).

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

18861714 is a wasteful number, since it uses less digits than its factorization.

18861714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349302 (or 349296 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 18861714 is about 4343.0074833000. The cubic root of 18861714 is about 266.1912149528.

It can be divided in two parts, 1886 and 1714, that added together give a square (3600 = 60²).

The spelling of 18861714 in words is "eighteen million, eight hundred sixty-one thousand, seven hundred fourteen".