1097838 has 24 divisors (see below), whose sum is σ = 2718768. Its totient is φ = 313632.

The previous prime is 1097819. The next prime is 1097849. The reversal of 1097838 is 8387901.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4231 + ... + 4482.

It is an arithmetic number, because the mean of its divisors is an integer number (113282).

2^1097838 is an apocalyptic number.

1097838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1097838 is an abundant number, since it is smaller than the sum of its proper divisors (1620930).

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

1097838 is a wasteful number, since it uses less digits than its factorization.

1097838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8728 (or 8725 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 1097838 is about 1047.7776481678. Note that the first 3 decimals coincide. The cubic root of 1097838 is about 103.1603372011.

The spelling of 1097838 in words is "one million, ninety-seven thousand, eight hundred thirty-eight".