18585713 has 2 divisors, whose sum is σ = 18585714. Its totient is φ = 18585712.

The previous prime is 18585703. The next prime is 18585719. The reversal of 18585713 is 31758581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18258529 + 327184 = 4273^2 + 572^2 .

It is a cyclic number.

It is not a de Polignac number, because 18585713 - 2¹⁴ = 18569329 is a prime.

It is not a weakly prime, because it can be changed into another prime (18585719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9292856 + 9292857.

It is an arithmetic number, because the mean of its divisors is an integer number (9292857).

Almost surely, 2^18585713 is an apocalyptic number.

It is an amenable number.

18585713 is a deficient number, since it is larger than the sum of its proper divisors (1).

18585713 is an equidigital number, since it uses as much as digits as its factorization.

18585713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 38.

The square root of 18585713 is about 4311.1150529764. The cubic root of 18585713 is about 264.8864495121.

The spelling of 18585713 in words is "eighteen million, five hundred eighty-five thousand, seven hundred thirteen".