2018671 has 2 divisors, whose sum is σ = 2018672. Its totient is φ = 2018670.

The previous prime is 2018663. The next prime is 2018677. The reversal of 2018671 is 1768102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2018671 - 2³ = 2018663 is a prime.

It is an Ulam number.

2018671 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2018677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009335 + 1009336.

It is an arithmetic number, because the mean of its divisors is an integer number (1009336).

2^2018671 is an apocalyptic number.

2018671 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018671 is an equidigital number, since it uses as much as digits as its factorization.

2018671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 2018671 is about 1420.7994228602. The cubic root of 2018671 is about 126.3829576647.

The spelling of 2018671 in words is "two million, eighteen thousand, six hundred seventy-one".