799768405 has 8 divisors (see below), whose sum is σ = 962999352. Its totient is φ = 637629888.

The previous prime is 799768391. The next prime is 799768433. The reversal of 799768405 is 504867997.

It can be written as a sum of positive squares in 4 ways, for example, as 121374289 + 678394116 = 11017^2 + 26046^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-799768405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271494 + ... + 274423.

It is an arithmetic number, because the mean of its divisors is an integer number (120374919).

Almost surely, 2^799768405 is an apocalyptic number.

It is an amenable number.

799768405 is a deficient number, since it is larger than the sum of its proper divisors (163230947).

799768405 is a wasteful number, since it uses less digits than its factorization.

799768405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546215.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The square root of 799768405 is about 28280.1768912431. The cubic root of 799768405 is about 928.2281773463.

The spelling of 799768405 in words is "seven hundred ninety-nine million, seven hundred sixty-eight thousand, four hundred five".