18684053 has 4 divisors (see below), whose sum is σ = 18920640. Its totient is φ = 18447468.

The previous prime is 18684031. The next prime is 18684077. The reversal of 18684053 is 35048681.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18684053 - 2⁶ = 18683989 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 (18684013) 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 3 ways as a sum of consecutive naturals, for example, 118175 + ... + 118332.

It is an arithmetic number, because the mean of its divisors is an integer number (4730160).

Almost surely, 2^18684053 is an apocalyptic number.

It is an amenable number.

18684053 is a deficient number, since it is larger than the sum of its proper divisors (236587).

18684053 is an equidigital number, since it uses as much as digits as its factorization.

18684053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236586.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 18684053 is about 4322.5054077468. The cubic root of 18684053 is about 265.3528135590.

The spelling of 18684053 in words is "eighteen million, six hundred eighty-four thousand, fifty-three".