797953 has 4 divisors (see below), whose sum is σ = 859348. Its totient is φ = 736560.

The previous prime is 797947. The next prime is 797957. The reversal of 797953 is 359797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 359797 = 331 ⋅1087.

It can be written as a sum of positive squares in 2 ways, for example, as 63504 + 734449 = 252^2 + 857^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-797953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797957) 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 in 3 ways as a sum of consecutive naturals, for example, 30678 + ... + 30703.

It is an arithmetic number, because the mean of its divisors is an integer number (214837).

2⁷⁹⁷⁹⁵³ is an apocalyptic number.

It is an amenable number.

797953 is a deficient number, since it is larger than the sum of its proper divisors (61395).

797953 is a wasteful number, since it uses less digits than its factorization.

797953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61394.

The product of its digits is 59535, while the sum is 40.

The square root of 797953 is about 893.2821502750. The cubic root of 797953 is about 92.7525312745.

The spelling of 797953 in words is "seven hundred ninety-seven thousand, nine hundred fifty-three".