2680397 has 4 divisors (see below), whose sum is σ = 2796960. Its totient is φ = 2563836.

The previous prime is 2680393. The next prime is 2680399. The reversal of 2680397 is 7930862.

2680397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2680397 - 2² = 2680393 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2 + 6⁸ + 8 + 0 + 3¹¹ + 9² + 7⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58247 + ... + 58292.

It is an arithmetic number, because the mean of its divisors is an integer number (699240).

2^2680397 is an apocalyptic number.

It is an amenable number.

2680397 is a deficient number, since it is larger than the sum of its proper divisors (116563).

2680397 is a wasteful number, since it uses less digits than its factorization.

2680397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116562.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2680397 is about 1637.1918030579. The cubic root of 2680397 is about 138.9098495891.

The spelling of 2680397 in words is "two million, six hundred eighty thousand, three hundred ninety-seven".