1322869 has 2 divisors, whose sum is σ = 1322870. Its totient is φ = 1322868.

The previous prime is 1322857. The next prime is 1322873. The reversal of 1322869 is 9682231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1238769 + 84100 = 1113^2 + 290^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322869 - 2⁹ = 1322357 is a prime.

It is a super-2 number, since 2×1322869² = 3499964782322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1322869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661434 + 661435.

It is an arithmetic number, because the mean of its divisors is an integer number (661435).

2^1322869 is an apocalyptic number.

It is an amenable number.

1322869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322869 is an equidigital number, since it uses as much as digits as its factorization.

1322869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 1322869 is about 1150.1604235932. The cubic root of 1322869 is about 109.7755478323.

The spelling of 1322869 in words is "one million, three hundred twenty-two thousand, eight hundred sixty-nine".