790865 has 8 divisors (see below), whose sum is σ = 964968. Its totient is φ = 622080.

The previous prime is 790861. The next prime is 790871. The reversal of 790865 is 568097.

It can be written as a sum of positive squares in 4 ways, for example, as 4096 + 786769 = 64^2 + 887^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 790865 - 2² = 790861 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (790861) 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 7 ways as a sum of consecutive naturals, for example, 992 + ... + 1601.

It is an arithmetic number, because the mean of its divisors is an integer number (120621).

2⁷⁹⁰⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

790865 is a deficient number, since it is larger than the sum of its proper divisors (174103).

790865 is a wasteful number, since it uses less digits than its factorization.

790865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 790865 is about 889.3059091224. The cubic root of 790865 is about 92.4770822211.

The spelling of 790865 in words is "seven hundred ninety thousand, eight hundred sixty-five".