2780597 has 2 divisors, whose sum is σ = 2780598. Its totient is φ = 2780596.

The previous prime is 2780527. The next prime is 2780599. The reversal of 2780597 is 7950872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2775556 + 5041 = 1666^2 + 71^2 .

It is a cyclic number.

It is not a de Polignac number, because 2780597 - 2¹⁴ = 2764213 is a prime.

Together with 2780599, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2780597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2780599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1390298 + 1390299.

It is an arithmetic number, because the mean of its divisors is an integer number (1390299).

2^2780597 is an apocalyptic number.

It is an amenable number.

2780597 is a deficient number, since it is larger than the sum of its proper divisors (1).

2780597 is an equidigital number, since it uses as much as digits as its factorization.

2780597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 2780597 is about 1667.5122188458. The cubic root of 2780597 is about 140.6196512863.

The spelling of 2780597 in words is "two million, seven hundred eighty thousand, five hundred ninety-seven".