18397106 has 32 divisors (see below), whose sum is σ = 34180608. Its totient is φ = 7231680.

The previous prime is 18397081. The next prime is 18397109. The reversal of 18397106 is 60179381.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18397109) 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 15 ways as a sum of consecutive naturals, for example, 49136 + ... + 49508.

It is an arithmetic number, because the mean of its divisors is an integer number (1068144).

Almost surely, 2^18397106 is an apocalyptic number.

18397106 is a deficient number, since it is larger than the sum of its proper divisors (15783502).

18397106 is a wasteful number, since it uses less digits than its factorization.

18397106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 18397106 is about 4289.1847710258. The cubic root of 18397106 is about 263.9873826997.

The spelling of 18397106 in words is "eighteen million, three hundred ninety-seven thousand, one hundred six".