1097837 has 4 divisors (see below), whose sum is σ = 1182300. Its totient is φ = 1013376.

The previous prime is 1097819. The next prime is 1097849. The reversal of 1097837 is 7387901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7387901 = 37 ⋅199673.

It can be written as a sum of positive squares in 2 ways, for example, as 119716 + 978121 = 346^2 + 989^2 .

It is not a de Polignac number, because 1097837 - 2²⁰ = 49261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1097797 and 1097806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097897) 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, 42212 + ... + 42237.

It is an arithmetic number, because the mean of its divisors is an integer number (295575).

2^1097837 is an apocalyptic number.

It is an amenable number.

1097837 is a deficient number, since it is larger than the sum of its proper divisors (84463).

1097837 is an equidigital number, since it uses as much as digits as its factorization.

1097837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84462.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 1097837 is about 1047.7771709672. Note that the first 3 decimals coincide. The cubic root of 1097837 is about 103.1603058789.

Subtracting 1097837 from its reverse (7387901), we obtain a square (6290064 = 2508²).

The spelling of 1097837 in words is "one million, ninety-seven thousand, eight hundred thirty-seven".