1165828 has 6 divisors (see below), whose sum is σ = 2040206. Its totient is φ = 582912.

The previous prime is 1165823. The next prime is 1165831. The reversal of 1165828 is 8285611.

It can be written as a sum of positive squares in only one way, i.e., 831744 + 334084 = 912^2 + 578^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1165828.

It is not an unprimeable number, because it can be changed into a prime (1165823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145725 + ... + 145732.

2^1165828 is an apocalyptic number.

It is an amenable number.

1165828 is a deficient number, since it is larger than the sum of its proper divisors (874378).

1165828 is a wasteful number, since it uses less digits than its factorization.

1165828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291461 (or 291459 counting only the distinct ones).

The product of its digits is 3840, while the sum is 31.

The square root of 1165828 is about 1079.7351527111. The cubic root of 1165828 is about 105.2474285795.

The spelling of 1165828 in words is "one million, one hundred sixty-five thousand, eight hundred twenty-eight".