799915 has 8 divisors (see below), whose sum is σ = 966960. Its totient is φ = 635232.

The previous prime is 799891. The next prime is 799921. The reversal of 799915 is 519997.

799915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 799915 - 2¹⁵ = 767147 is a prime.

799915 is a lucky 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, 276 + ... + 1294.

It is an arithmetic number, because the mean of its divisors is an integer number (120870).

2⁷⁹⁹⁹¹⁵ is an apocalyptic number.

799915 is a deficient number, since it is larger than the sum of its proper divisors (167045).

799915 is a wasteful number, since it uses less digits than its factorization.

799915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181.

The product of its digits is 25515, while the sum is 40.

The square root of 799915 is about 894.3796732932. The cubic root of 799915 is about 92.8284887637.

Subtracting from 799915 its product of digits (25515), we obtain a square (774400 = 880²).

The spelling of 799915 in words is "seven hundred ninety-nine thousand, nine hundred fifteen".