2079865 has 8 divisors (see below), whose sum is σ = 2642760. Its totient is φ = 1565952.

The previous prime is 2079863. The next prime is 2079877. The reversal of 2079865 is 5689702.

It can be written as a sum of positive squares in 4 ways, for example, as 150544 + 1929321 = 388^2 + 1389^2 .

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 2079865 - 2¹ = 2079863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2079863) 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, 12150 + ... + 12319.

It is an arithmetic number, because the mean of its divisors is an integer number (330345).

2^2079865 is an apocalyptic number.

It is an amenable number.

2079865 is a deficient number, since it is larger than the sum of its proper divisors (562895).

2079865 is a wasteful number, since it uses less digits than its factorization.

2079865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24491.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 2079865 is about 1442.1737065971. The cubic root of 2079865 is about 127.6473242569.

The spelling of 2079865 in words is "two million, seventy-nine thousand, eight hundred sixty-five".