2680361 has 4 divisors (see below), whose sum is σ = 2698500. Its totient is φ = 2662224.

The previous prime is 2680357. The next prime is 2680367. The reversal of 2680361 is 1630862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1630862 = 2 ⋅815431.

It can be written as a sum of positive squares in 2 ways, for example, as 1142761 + 1537600 = 1069^2 + 1240^2 .

It is a cyclic number.

It is not a de Polignac number, because 2680361 - 2² = 2680357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2680361.

It is not an unprimeable number, because it can be changed into a prime (2680367) 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, 8846 + ... + 9143.

It is an arithmetic number, because the mean of its divisors is an integer number (674625).

2^2680361 is an apocalyptic number.

It is an amenable number.

2680361 is a deficient number, since it is larger than the sum of its proper divisors (18139).

2680361 is a wasteful number, since it uses less digits than its factorization.

2680361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18138.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2680361 is about 1637.1808085853. The cubic root of 2680361 is about 138.9092276940.

The spelling of 2680361 in words is "two million, six hundred eighty thousand, three hundred sixty-one".