18397067 has 8 divisors (see below), whose sum is σ = 19956720. Its totient is φ = 16858080.

The previous prime is 18397063. The next prime is 18397081. The reversal of 18397067 is 76079381.

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

It is a cyclic number.

It is not a de Polignac number, because 18397067 - 2² = 18397063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18397063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3284 + ... + 6897.

It is an arithmetic number, because the mean of its divisors is an integer number (2494590).

Almost surely, 2^18397067 is an apocalyptic number.

18397067 is a deficient number, since it is larger than the sum of its proper divisors (1559653).

18397067 is a wasteful number, since it uses less digits than its factorization.

18397067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10333.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 18397067 is about 4289.1802247049. The cubic root of 18397067 is about 263.9871961574.

The spelling of 18397067 in words is "eighteen million, three hundred ninety-seven thousand, sixty-seven".