1097844 has 24 divisors (see below), whose sum is σ = 2794848. Its totient is φ = 332640.

The previous prime is 1097819. The next prime is 1097849. The reversal of 1097844 is 4487901.

It is a super-2 number, since 2×1097844² = 2410522896672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4027 + ... + 4290.

It is an arithmetic number, because the mean of its divisors is an integer number (116452).

2^1097844 is an apocalyptic number.

It is an amenable number.

1097844 is an abundant number, since it is smaller than the sum of its proper divisors (1697004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1097844 is a wasteful number, since it uses less digits than its factorization.

1097844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8335 (or 8333 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1097844 is about 1047.7805113668. The cubic root of 1097844 is about 103.1605251344.

The spelling of 1097844 in words is "one million, ninety-seven thousand, eight hundred forty-four".