1823849 has 2 divisors, whose sum is σ = 1823850. Its totient is φ = 1823848.

The previous prime is 1823837. The next prime is 1823863. The reversal of 1823849 is 9483281.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1708249 + 115600 = 1307^2 + 340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1823849 - 2²⁰ = 775273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1823149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911924 + 911925.

It is an arithmetic number, because the mean of its divisors is an integer number (911925).

2^1823849 is an apocalyptic number.

It is an amenable number.

1823849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1823849 is an equidigital number, since it uses as much as digits as its factorization.

1823849 is an evil number, because the sum of its binary digits is even.

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

The square root of 1823849 is about 1350.4995372084. The cubic root of 1823849 is about 122.1789231687.

The spelling of 1823849 in words is "one million, eight hundred twenty-three thousand, eight hundred forty-nine".