2683657 has 2 divisors, whose sum is σ = 2683658. Its totient is φ = 2683656.

The previous prime is 2683649. The next prime is 2683661. The reversal of 2683657 is 7563862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1610361 + 1073296 = 1269^2 + 1036^2 .

It is a cyclic number.

It is not a de Polignac number, because 2683657 - 2³ = 2683649 is a prime.

It is a d-powerful number, because it can be written as 2 + 6³ + 8 + 3¹¹ + 6⁸ + 5⁵ + 7⁷ .

2683657 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2683697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1341828 + 1341829.

It is an arithmetic number, because the mean of its divisors is an integer number (1341829).

2^2683657 is an apocalyptic number.

It is an amenable number.

2683657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2683657 is an equidigital number, since it uses as much as digits as its factorization.

2683657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 2683657 is about 1638.1871077505. The cubic root of 2683657 is about 138.9661425741.

The spelling of 2683657 in words is "two million, six hundred eighty-three thousand, six hundred fifty-seven".