1822669 has 2 divisors, whose sum is σ = 1822670. Its totient is φ = 1822668.

The previous prime is 1822663. The next prime is 1822673. The reversal of 1822669 is 9662281.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1822500 + 169 = 1350^2 + 13^2 .

It is a cyclic number.

It is not a de Polignac number, because 1822669 - 2³ = 1822661 is a prime.

It is a super-2 number, since 2×1822669² = 6644244567122, which contains 22 as substring.

1822669 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1822661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911334 + 911335.

It is an arithmetic number, because the mean of its divisors is an integer number (911335).

2^1822669 is an apocalyptic number.

It is an amenable number.

1822669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1822669 is an equidigital number, since it uses as much as digits as its factorization.

1822669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 1822669 is about 1350.0625911416. The cubic root of 1822669 is about 122.1525682398.

The spelling of 1822669 in words is "one million, eight hundred twenty-two thousand, six hundred sixty-nine".