2079681 has 8 divisors (see below), whose sum is σ = 2783904. Its totient is φ = 1380960.

The previous prime is 2079653. The next prime is 2079709. The reversal of 2079681 is 1869702.

It is an interprime number because it is at equal distance from previous prime (2079653) and next prime (2079709).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2079681 - 2⁶ = 2079617 is a prime.

It is a super-2 number, since 2×2079681² = 8650146123522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2079601) 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, 391 + ... + 2076.

It is an arithmetic number, because the mean of its divisors is an integer number (347988).

2^2079681 is an apocalyptic number.

It is an amenable number.

2079681 is a deficient number, since it is larger than the sum of its proper divisors (704223).

2079681 is a wasteful number, since it uses less digits than its factorization.

2079681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 2079681 is about 1442.1099125934. The cubic root of 2079681 is about 127.6435599421.

The spelling of 2079681 in words is "two million, seventy-nine thousand, six hundred eighty-one".