18064693 has 8 divisors (see below), whose sum is σ = 19370880. Its totient is φ = 16785600.

The previous prime is 18064663. The next prime is 18064699. The reversal of 18064693 is 39646081.

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 18064693 - 2⁹ = 18064181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18064699) 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, 5383 + ... + 8068.

It is an arithmetic number, because the mean of its divisors is an integer number (2421360).

Almost surely, 2^18064693 is an apocalyptic number.

It is an amenable number.

18064693 is a deficient number, since it is larger than the sum of its proper divisors (1306187).

18064693 is a wasteful number, since it uses less digits than its factorization.

18064693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13547.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 18064693 is about 4250.2579921694. The cubic root of 18064693 is about 262.3877337009.

The spelling of 18064693 in words is "eighteen million, sixty-four thousand, six hundred ninety-three".