1828291 has 2 divisors, whose sum is σ = 1828292. Its totient is φ = 1828290.

The previous prime is 1828283. The next prime is 1828301. The reversal of 1828291 is 1928281.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1828291 - 2³ = 1828283 is a prime.

It is a super-3 number, since 3×1828291³ = 18333999657741738513, which contains 333 as substring.

1828291 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1828271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 914145 + 914146.

It is an arithmetic number, because the mean of its divisors is an integer number (914146).

2^1828291 is an apocalyptic number.

1828291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1828291 is an equidigital number, since it uses as much as digits as its factorization.

1828291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 31.

The square root of 1828291 is about 1352.1431137272. The cubic root of 1828291 is about 122.2780320265.

The spelling of 1828291 in words is "one million, eight hundred twenty-eight thousand, two hundred ninety-one".