2015799 has 4 divisors (see below), whose sum is σ = 2687736. Its totient is φ = 1343864.

The previous prime is 2015791. The next prime is 2015801. The reversal of 2015799 is 9975102.

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

It is a cyclic number.

It is not a de Polignac number, because 2015799 - 2³ = 2015791 is a prime.

It is a D-number.

It is a plaindrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335964 + ... + 335969.

It is an arithmetic number, because the mean of its divisors is an integer number (671934).

2^2015799 is an apocalyptic number.

2015799 is a deficient number, since it is larger than the sum of its proper divisors (671937).

2015799 is an equidigital number, since it uses as much as digits as its factorization.

2015799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671936.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 2015799 is about 1419.7883645107. The cubic root of 2015799 is about 126.3229934397.

The spelling of 2015799 in words is "two million, fifteen thousand, seven hundred ninety-nine".