18713073 has 8 divisors (see below), whose sum is σ = 26418528. Its totient is φ = 11741504.

The previous prime is 18713027. The next prime is 18713113. The reversal of 18713073 is 37031781.

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 18713073 - 2⁸ = 18712817 is a prime.

It is a super-2 number, since 2×18713073² = 700358202206658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18713073.

It is not an unprimeable number, because it can be changed into a prime (18713573) 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 7 ways as a sum of consecutive naturals, for example, 183411 + ... + 183512.

It is an arithmetic number, because the mean of its divisors is an integer number (3302316).

Almost surely, 2^18713073 is an apocalyptic number.

It is an amenable number.

18713073 is a deficient number, since it is larger than the sum of its proper divisors (7705455).

18713073 is a wasteful number, since it uses less digits than its factorization.

18713073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366943.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 18713073 is about 4325.8609547696. The cubic root of 18713073 is about 265.4901241534.

The spelling of 18713073 in words is "eighteen million, seven hundred thirteen thousand, seventy-three".