1866283 has 2 divisors, whose sum is σ = 1866284. Its totient is φ = 1866282.

The previous prime is 1866281. The next prime is 1866301. The reversal of 1866283 is 3826681.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1866283 - 2¹ = 1866281 is a prime.

Together with 1866281, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1866281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 933141 + 933142.

It is an arithmetic number, because the mean of its divisors is an integer number (933142).

2^1866283 is an apocalyptic number.

1866283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1866283 is an equidigital number, since it uses as much as digits as its factorization.

1866283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 34.

The square root of 1866283 is about 1366.1196872895. The cubic root of 1866283 is about 123.1192137420.

The spelling of 1866283 in words is "one million, eight hundred sixty-six thousand, two hundred eighty-three".