790805 has 4 divisors (see below), whose sum is σ = 948972. Its totient is φ = 632640.

The previous prime is 790793. The next prime is 790817. The reversal of 790805 is 508097.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (790793) and next prime (790817).

It can be written as a sum of positive squares in 2 ways, for example, as 303601 + 487204 = 551^2 + 698^2 .

It is a de Polignac number, because none of the positive numbers 2^k-790805 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable 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 in 3 ways as a sum of consecutive naturals, for example, 79076 + ... + 79085.

It is an arithmetic number, because the mean of its divisors is an integer number (237243).

2⁷⁹⁰⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

790805 is a deficient number, since it is larger than the sum of its proper divisors (158167).

790805 is a wasteful number, since it uses less digits than its factorization.

790805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158166.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 790805 is about 889.2721743089. The cubic root of 790805 is about 92.4747435306.

The spelling of 790805 in words is "seven hundred ninety thousand, eight hundred five".