1121797 has 4 divisors (see below), whose sum is σ = 1158016. Its totient is φ = 1085580.

The previous prime is 1121737. The next prime is 1121819. The reversal of 1121797 is 7971211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1121797 - 2¹⁵ = 1089029 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 (1121707) 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, 18063 + ... + 18124.

It is an arithmetic number, because the mean of its divisors is an integer number (289504).

2^1121797 is an apocalyptic number.

1121797 is the 612-nd hex number.

It is an amenable number.

1121797 is a deficient number, since it is larger than the sum of its proper divisors (36219).

1121797 is an equidigital number, since it uses as much as digits as its factorization.

1121797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36218.

The product of its digits is 882, while the sum is 28.

The square root of 1121797 is about 1059.1491868476. The cubic root of 1121797 is about 103.9053935011.

The spelling of 1121797 in words is "one million, one hundred twenty-one thousand, seven hundred ninety-seven".