1869361 has 4 divisors (see below), whose sum is σ = 2013172. Its totient is φ = 1725552.

The previous prime is 1869341. The next prime is 1869379. The reversal of 1869361 is 1639681.

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 129600 + 1739761 = 360^2 + 1319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1869361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1869341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71886 + ... + 71911.

It is an arithmetic number, because the mean of its divisors is an integer number (503293).

2^1869361 is an apocalyptic number.

It is an amenable number.

1869361 is a deficient number, since it is larger than the sum of its proper divisors (143811).

1869361 is a wasteful number, since it uses less digits than its factorization.

1869361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143810.

The product of its digits is 7776, while the sum is 34.

The square root of 1869361 is about 1367.2457716153. The cubic root of 1869361 is about 123.1868620738.

The spelling of 1869361 in words is "one million, eight hundred sixty-nine thousand, three hundred sixty-one".