18057673 has 2 divisors, whose sum is σ = 18057674. Its totient is φ = 18057672.

The previous prime is 18057667. The next prime is 18057709. The reversal of 18057673 is 37675081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14417209 + 3640464 = 3797^2 + 1908^2 .

It is a cyclic number.

It is not a de Polignac number, because 18057673 - 2¹³ = 18049481 is a prime.

It is not a weakly prime, because it can be changed into another prime (18057173) 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 as a sum of consecutive naturals, namely, 9028836 + 9028837.

It is an arithmetic number, because the mean of its divisors is an integer number (9028837).

Almost surely, 2^18057673 is an apocalyptic number.

It is an amenable number.

18057673 is a deficient number, since it is larger than the sum of its proper divisors (1).

18057673 is an equidigital number, since it uses as much as digits as its factorization.

18057673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 18057673 is about 4249.4320797019. The cubic root of 18057673 is about 262.3537410476.

The spelling of 18057673 in words is "eighteen million, fifty-seven thousand, six hundred seventy-three".