2680357 has 2 divisors, whose sum is σ = 2680358. Its totient is φ = 2680356.

The previous prime is 2680313. The next prime is 2680367. The reversal of 2680357 is 7530862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2643876 + 36481 = 1626^2 + 191^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2680357 is a prime.

2680357 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2680367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340178 + 1340179.

It is an arithmetic number, because the mean of its divisors is an integer number (1340179).

2^2680357 is an apocalyptic number.

It is an amenable number.

2680357 is a deficient number, since it is larger than the sum of its proper divisors (1).

2680357 is an equidigital number, since it uses as much as digits as its factorization.

2680357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2680357 is about 1637.1795869727. The cubic root of 2680357 is about 138.9091585942.

The spelling of 2680357 in words is "two million, six hundred eighty thousand, three hundred fifty-seven".