14187998 has 8 divisors (see below), whose sum is σ = 23216760. Its totient is φ = 6449080.

The previous prime is 14187991. The next prime is 14188007. The reversal of 14187998 is 89978141.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14187991) 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, 322433 + ... + 322476.

It is an arithmetic number, because the mean of its divisors is an integer number (2902095).

Almost surely, 2^14187998 is an apocalyptic number.

14187998 is a deficient number, since it is larger than the sum of its proper divisors (9028762).

14187998 is a wasteful number, since it uses less digits than its factorization.

14187998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644922.

The product of its digits is 145152, while the sum is 47.

The square root of 14187998 is about 3766.6958995916. The cubic root of 14187998 is about 242.0882473051.

The spelling of 14187998 in words is "fourteen million, one hundred eighty-seven thousand, nine hundred ninety-eight".