2680393 has 2 divisors, whose sum is σ = 2680394. Its totient is φ = 2680392.

The previous prime is 2680367. The next prime is 2680399. The reversal of 2680393 is 3930862.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2396304 + 284089 = 1548^2 + 533^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2680393 is a prime.

It is not a weakly prime, because it can be changed into another prime (2680399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340196 + 1340197.

It is an arithmetic number, because the mean of its divisors is an integer number (1340197).

2^2680393 is an apocalyptic number.

It is an amenable number.

2680393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2680393 is an equidigital number, since it uses as much as digits as its factorization.

2680393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 2680393 is about 1637.1905814535. The cubic root of 2680393 is about 138.9097804899.

It can be divided in two parts, 26803 and 93, that added together give a square (26896 = 164²).

The spelling of 2680393 in words is "two million, six hundred eighty thousand, three hundred ninety-three".