1828669 has 2 divisors, whose sum is σ = 1828670. Its totient is φ = 1828668.

The previous prime is 1828667. The next prime is 1828681. The reversal of 1828669 is 9668281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1352569 + 476100 = 1163^2 + 690^2 .

It is a cyclic number.

It is not a de Polignac number, because 1828669 - 2¹ = 1828667 is a prime.

It is a super-2 number, since 2×1828669² = 6688060623122, which contains 22 as substring.

Together with 1828667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1828663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 914334 + 914335.

It is an arithmetic number, because the mean of its divisors is an integer number (914335).

2^1828669 is an apocalyptic number.

It is an amenable number.

1828669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1828669 is an equidigital number, since it uses as much as digits as its factorization.

1828669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 40.

The square root of 1828669 is about 1352.2828846066. The cubic root of 1828669 is about 122.2864584588.

The spelling of 1828669 in words is "one million, eight hundred twenty-eight thousand, six hundred sixty-nine".