799567 has 4 divisors (see below), whose sum is σ = 801360. Its totient is φ = 797776.

The previous prime is 799553. The next prime is 799573. The reversal of 799567 is 765997.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 765997 = 59 ⋅12983.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-799567 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 (799507) 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 3 ways as a sum of consecutive naturals, for example, 363 + ... + 1315.

It is an arithmetic number, because the mean of its divisors is an integer number (200340).

2⁷⁹⁹⁵⁶⁷ is an apocalyptic number.

799567 is a deficient number, since it is larger than the sum of its proper divisors (1793).

799567 is an equidigital number, since it uses as much as digits as its factorization.

799567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792.

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

The square root of 799567 is about 894.1851038795. The cubic root of 799567 is about 92.8150252499.

The spelling of 799567 in words is "seven hundred ninety-nine thousand, five hundred sixty-seven".