799655 has 4 divisors (see below), whose sum is σ = 959592. Its totient is φ = 639720.

The previous prime is 799651. The next prime is 799657. The reversal of 799655 is 556997.

799655 = T₃₁₉ + T₃₂₀ + ... + T₃₃₃.

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

It is not a de Polignac number, because 799655 - 2² = 799651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79961 + ... + 79970.

It is an arithmetic number, because the mean of its divisors is an integer number (239898).

2⁷⁹⁹⁶⁵⁵ is an apocalyptic number.

799655 is a deficient number, since it is larger than the sum of its proper divisors (159937).

799655 is a wasteful number, since it uses less digits than its factorization.

799655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159936.

The product of its digits is 85050, while the sum is 41.

The square root of 799655 is about 894.2343093396. The cubic root of 799655 is about 92.8184301856.

The spelling of 799655 in words is "seven hundred ninety-nine thousand, six hundred fifty-five".