1011797 has 2 divisors, whose sum is σ = 1011798. Its totient is φ = 1011796.

The previous prime is 1011779. The next prime is 1011799. The reversal of 1011797 is 7971101.

Together with previous prime (1011779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 972196 + 39601 = 986^2 + 199^2 .

It is an emirp because it is prime and its reverse (7971101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1011797 - 2⁶ = 1011733 is a prime.

Together with 1011799, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505898 + 505899.

It is an arithmetic number, because the mean of its divisors is an integer number (505899).

2^1011797 is an apocalyptic number.

It is an amenable number.

1011797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011797 is an equidigital number, since it uses as much as digits as its factorization.

1011797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 441, while the sum is 26.

The square root of 1011797 is about 1005.8812057097. The cubic root of 1011797 is about 100.3916970642.

Adding to 1011797 its reverse (7971101), we get a palindrome (8982898).

The spelling of 1011797 in words is "one million, eleven thousand, seven hundred ninety-seven".