799806405 has 8 divisors (see below), whose sum is σ = 1279690272. Its totient is φ = 426563408.

The previous prime is 799806401. The next prime is 799806437. The reversal of 799806405 is 504608997.

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

It is a cyclic number.

It is not a de Polignac number, because 799806405 - 2² = 799806401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799806401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26660199 + ... + 26660228.

It is an arithmetic number, because the mean of its divisors is an integer number (159961284).

Almost surely, 2^799806405 is an apocalyptic number.

It is an amenable number.

799806405 is a deficient number, since it is larger than the sum of its proper divisors (479883867).

799806405 is a wasteful number, since it uses less digits than its factorization.

799806405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53320435.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 799806405 is about 28280.8487319599. The cubic root of 799806405 is about 928.2428783155.

The spelling of 799806405 in words is "seven hundred ninety-nine million, eight hundred six thousand, four hundred five".