799945 has 8 divisors (see below), whose sum is σ = 967680. Its totient is φ = 634800.

The previous prime is 799921. The next prime is 799949. The reversal of 799945 is 549997.

799945 = T₃₀ + T₃₁ + ... + T₁₆₈.

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

It is not a de Polignac number, because 799945 - 2⁷ = 799817 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (799949) 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, 120 + ... + 1270.

It is an arithmetic number, because the mean of its divisors is an integer number (120960).

2⁷⁹⁹⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

799945 is a deficient number, since it is larger than the sum of its proper divisors (167735).

799945 is a wasteful number, since it uses less digits than its factorization.

799945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295.

The product of its digits is 102060, while the sum is 43.

The square root of 799945 is about 894.3964445368. The cubic root of 799945 is about 92.8296492286.

The spelling of 799945 in words is "seven hundred ninety-nine thousand, nine hundred forty-five".