18106673 has 8 divisors (see below), whose sum is σ = 19562088. Its totient is φ = 16660224.

The previous prime is 18106667. The next prime is 18106733. The reversal of 18106673 is 37660181.

It can be written as a sum of positive squares in 4 ways, for example, as 734449 + 17372224 = 857^2 + 4168^2 .

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 18106673 - 2²⁴ = 1329457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18106873) 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, 2315 + ... + 6447.

It is an arithmetic number, because the mean of its divisors is an integer number (2445261).

Almost surely, 2^18106673 is an apocalyptic number.

18106673 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18106673 is a deficient number, since it is larger than the sum of its proper divisors (1455415).

18106673 is a wasteful number, since it uses less digits than its factorization.

18106673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 18106673 is about 4255.1936501175. The cubic root of 18106673 is about 262.5908281304.

The spelling of 18106673 in words is "eighteen million, one hundred six thousand, six hundred seventy-three".