799940555 has 8 divisors (see below), whose sum is σ = 985872912. Its totient is φ = 622656288.

The previous prime is 799940549. The next prime is 799940579. The reversal of 799940555 is 555049997.

It is a happy number.

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-799940555 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 799940497 and 799940506.

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, 2161817 + ... + 2162186.

It is an arithmetic number, because the mean of its divisors is an integer number (123234114).

Almost surely, 2^799940555 is an apocalyptic number.

799940555 is a deficient number, since it is larger than the sum of its proper divisors (185932357).

799940555 is a wasteful number, since it uses less digits than its factorization.

799940555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4324045.

The product of its (nonzero) digits is 2551500, while the sum is 53.

The square root of 799940555 is about 28283.2203788748. The cubic root of 799940555 is about 928.2947728823.

The spelling of 799940555 in words is "seven hundred ninety-nine million, nine hundred forty thousand, five hundred fifty-five".