7683649 has 2 divisors, whose sum is σ = 7683650. Its totient is φ = 7683648.

The previous prime is 7683617. The next prime is 7683653. The reversal of 7683649 is 9463867.

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., 7617600 + 66049 = 2760^2 + 257^2 .

It is a cyclic number.

It is not a de Polignac number, because 7683649 - 2⁵ = 7683617 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7683749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3841824 + 3841825.

It is an arithmetic number, because the mean of its divisors is an integer number (3841825).

Almost surely, 2^7683649 is an apocalyptic number.

It is an amenable number.

7683649 is a deficient number, since it is larger than the sum of its proper divisors (1).

7683649 is an equidigital number, since it uses as much as digits as its factorization.

7683649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The square root of 7683649 is about 2771.9395736560. The cubic root of 7683649 is about 197.3282082484.

The spelling of 7683649 in words is "seven million, six hundred eighty-three thousand, six hundred forty-nine".