1999795 has 16 divisors (see below), whose sum is σ = 2904768. Its totient is φ = 1290240.

The previous prime is 1999771. The next prime is 1999799. The reversal of 1999795 is 5979991.

1999795 = 66² + 67² + ... + 184².

It is not a de Polignac number, because 1999795 - 2⁷ = 1999667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1999799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1086 + ... + 2275.

It is an arithmetic number, because the mean of its divisors is an integer number (181548).

2^1999795 is an apocalyptic number.

1999795 is a deficient number, since it is larger than the sum of its proper divisors (904973).

1999795 is a wasteful number, since it uses less digits than its factorization.

1999795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390.

The product of its digits is 229635, while the sum is 49.

The square root of 1999795 is about 1414.1410820707. The cubic root of 1999795 is about 125.9878001121.

The spelling of 1999795 in words is "one million, nine hundred ninety-nine thousand, seven hundred ninety-five".