1165797 has 6 divisors (see below), whose sum is σ = 1683942. Its totient is φ = 777192.

The previous prime is 1165789. The next prime is 1165799. The reversal of 1165797 is 7975611.

It can be written as a sum of positive squares in only one way, i.e., 1153476 + 12321 = 1074^2 + 111^2 .

It is not a de Polignac number, because 1165797 - 2³ = 1165789 is a prime.

It is an Ulam number.

1165797 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165799) 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 in 5 ways as a sum of consecutive naturals, for example, 64758 + ... + 64775.

It is an arithmetic number, because the mean of its divisors is an integer number (280657).

2^1165797 is an apocalyptic number.

It is an amenable number.

1165797 is a deficient number, since it is larger than the sum of its proper divisors (518145).

1165797 is a wasteful number, since it uses less digits than its factorization.

1165797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129539 (or 129536 counting only the distinct ones).

The product of its digits is 13230, while the sum is 36.

The square root of 1165797 is about 1079.7207972434. The cubic root of 1165797 is about 105.2464957092.

The spelling of 1165797 in words is "one million, one hundred sixty-five thousand, seven hundred ninety-seven".