1868065 has 4 divisors (see below), whose sum is σ = 2241684. Its totient is φ = 1494448.

The previous prime is 1868063. The next prime is 1868107. The reversal of 1868065 is 5608681.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 788544 + 1079521 = 888^2 + 1039^2 .

It is a cyclic number.

It is not a de Polignac number, because 1868065 - 2¹ = 1868063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1868065.

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 in 3 ways as a sum of consecutive naturals, for example, 186802 + ... + 186811.

It is an arithmetic number, because the mean of its divisors is an integer number (560421).

2^1868065 is an apocalyptic number.

It is an amenable number.

1868065 is a deficient number, since it is larger than the sum of its proper divisors (373619).

1868065 is an equidigital number, since it uses as much as digits as its factorization.

1868065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373618.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 1868065 is about 1366.7717439280. The cubic root of 1868065 is about 123.1583876233.

The spelling of 1868065 in words is "one million, eight hundred sixty-eight thousand, sixty-five".