797956 has 6 divisors (see below), whose sum is σ = 1396430. Its totient is φ = 398976.

The previous prime is 797947. The next prime is 797957. The reversal of 797956 is 659797.

It can be written as a sum of positive squares in only one way, i.e., 695556 + 102400 = 834^2 + 320^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (797957) by changing a digit.

797956 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 99741 + ... + 99748.

2⁷⁹⁷⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

797956 is a deficient number, since it is larger than the sum of its proper divisors (598474).

797956 is a wasteful number, since it uses less digits than its factorization.

797956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199493 (or 199491 counting only the distinct ones).

The product of its digits is 119070, while the sum is 43.

The square root of 797956 is about 893.2838294741. The cubic root of 797956 is about 92.7526475125.

The spelling of 797956 in words is "seven hundred ninety-seven thousand, nine hundred fifty-six".