1868066 has 4 divisors (see below), whose sum is σ = 2802102. Its totient is φ = 934032.

The previous prime is 1868063. The next prime is 1868107. The reversal of 1868066 is 6608681.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6608681 = 37 ⋅178613.

It can be written as a sum of positive squares in only one way, i.e., 1836025 + 32041 = 1355^2 + 179^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1868063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 467015 + ... + 467018.

2^1868066 is an apocalyptic number.

1868066 is a deficient number, since it is larger than the sum of its proper divisors (934036).

1868066 is an equidigital number, since it uses as much as digits as its factorization.

1868066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934035.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1868066 is about 1366.7721097535. The cubic root of 1868066 is about 123.1584095994.

The spelling of 1868066 in words is "one million, eight hundred sixty-eight thousand, sixty-six".