1122887 has 2 divisors, whose sum is σ = 1122888. Its totient is φ = 1122886.

The previous prime is 1122857. The next prime is 1122899. The reversal of 1122887 is 7882211.

It is a strong prime.

It is an emirp because it is prime and its reverse (7882211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122887 - 2²⁰ = 74311 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561443 + 561444.

It is an arithmetic number, because the mean of its divisors is an integer number (561444).

2^1122887 is an apocalyptic number.

1122887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122887 is an equidigital number, since it uses as much as digits as its factorization.

1122887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1792, while the sum is 29.

The square root of 1122887 is about 1059.6636258738. The cubic root of 1122887 is about 103.9390360159.

The spelling of 1122887 in words is "one million, one hundred twenty-two thousand, eight hundred eighty-seven".