1122847 has 4 divisors (see below), whose sum is σ = 1224936. Its totient is φ = 1020760.

The previous prime is 1122841. The next prime is 1122857. The reversal of 1122847 is 7482211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1122847 - 2¹¹ = 1120799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51028 + ... + 51049.

It is an arithmetic number, because the mean of its divisors is an integer number (306234).

2^1122847 is an apocalyptic number.

1122847 is a deficient number, since it is larger than the sum of its proper divisors (102089).

1122847 is a wasteful number, since it uses less digits than its factorization.

1122847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102088.

The product of its digits is 896, while the sum is 25.

The square root of 1122847 is about 1059.6447517918. The cubic root of 1122847 is about 103.9378018131.

The spelling of 1122847 in words is "one million, one hundred twenty-two thousand, eight hundred forty-seven".