18073701 has 6 divisors (see below), whose sum is σ = 26106470. Its totient is φ = 12049128.

The previous prime is 18073697. The next prime is 18073721. The reversal of 18073701 is 10737081.

It can be written as a sum of positive squares in only one way, i.e., 16597476 + 1476225 = 4074^2 + 1215^2 .

It is not a de Polignac number, because 18073701 - 2² = 18073697 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 (18073721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1004086 + ... + 1004103.

Almost surely, 2^18073701 is an apocalyptic number.

It is an amenable number.

18073701 is a deficient number, since it is larger than the sum of its proper divisors (8032769).

18073701 is a wasteful number, since it uses less digits than its factorization.

18073701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008195 (or 2008192 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 18073701 is about 4251.3175604746. The cubic root of 18073701 is about 262.4313398658.

The spelling of 18073701 in words is "eighteen million, seventy-three thousand, seven hundred one".