18064047 has 16 divisors (see below), whose sum is σ = 25615872. Its totient is φ = 11283840.

The previous prime is 18064031. The next prime is 18064049. The reversal of 18064047 is 74046081.

It is not a de Polignac number, because 18064047 - 2⁴ = 18064031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18064049) 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, 13168 + ... + 14474.

It is an arithmetic number, because the mean of its divisors is an integer number (1600992).

Almost surely, 2^18064047 is an apocalyptic number.

18064047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

18064047 is a deficient number, since it is larger than the sum of its proper divisors (7551825).

18064047 is a wasteful number, since it uses less digits than its factorization.

18064047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 18064047 is about 4250.1819961032. The cubic root of 18064047 is about 262.3846059700.

The spelling of 18064047 in words is "eighteen million, sixty-four thousand, forty-seven".