18014997 has 48 divisors (see below), whose sum is σ = 32864832. Its totient is φ = 8628480.

The previous prime is 18014987. The next prime is 18015017. The reversal of 18014997 is 79941081.

It is a happy number.

It is not a de Polignac number, because 18014997 - 2⁶ = 18014933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18014977) 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 47 ways as a sum of consecutive naturals, for example, 20593 + ... + 21449.

It is an arithmetic number, because the mean of its divisors is an integer number (684684).

Almost surely, 2^18014997 is an apocalyptic number.

It is an amenable number.

18014997 is a deficient number, since it is larger than the sum of its proper divisors (14849835).

18014997 is a wasteful number, since it uses less digits than its factorization.

18014997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 18014997 is about 4244.4077325347. The cubic root of 18014997 is about 262.1469030289.

The spelling of 18014997 in words is "eighteen million, fourteen thousand, nine hundred ninety-seven".