2799161 has 4 divisors (see below), whose sum is σ = 2874852. Its totient is φ = 2723472.

The previous prime is 2799157. The next prime is 2799163. The reversal of 2799161 is 1619972.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2085136 + 714025 = 1444^2 + 845^2 .

It is a cyclic number.

It is not a de Polignac number, because 2799161 - 2² = 2799157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2799163) 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, 37790 + ... + 37863.

It is an arithmetic number, because the mean of its divisors is an integer number (718713).

2^2799161 is an apocalyptic number.

It is an amenable number.

2799161 is a deficient number, since it is larger than the sum of its proper divisors (75691).

2799161 is an equidigital number, since it uses as much as digits as its factorization.

2799161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75690.

The product of its digits is 6804, while the sum is 35.

The square root of 2799161 is about 1673.0693350845. The cubic root of 2799161 is about 140.9318954168.

The spelling of 2799161 in words is "two million, seven hundred ninety-nine thousand, one hundred sixty-one".