1322887 has 2 divisors, whose sum is σ = 1322888. Its totient is φ = 1322886.

The previous prime is 1322873. The next prime is 1322897. The reversal of 1322887 is 7882231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1322887 - 2¹⁹ = 798599 is a prime.

1322887 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661443 + 661444.

It is an arithmetic number, because the mean of its divisors is an integer number (661444).

2^1322887 is an apocalyptic number.

1322887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322887 is an equidigital number, since it uses as much as digits as its factorization.

1322887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 31.

The square root of 1322887 is about 1150.1682485619. The cubic root of 1322887 is about 109.7760457276.

It can be divided in two parts, 1322 and 887, that added together give a square (2209 = 47²).

The spelling of 1322887 in words is "one million, three hundred twenty-two thousand, eight hundred eighty-seven".