7684002649 has 2 divisors, whose sum is σ = 7684002650. Its totient is φ = 7684002648.

The previous prime is 7684002607. The next prime is 7684002671. The reversal of 7684002649 is 9462004867.

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., 4741699600 + 2942303049 = 68860^2 + 54243^2 .

It is a cyclic number.

It is not a de Polignac number, because 7684002649 - 2¹³ = 7683994457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7684002599 and 7684002608.

It is not a weakly prime, because it can be changed into another prime (7684002049) 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, 3842001324 + 3842001325.

It is an arithmetic number, because the mean of its divisors is an integer number (3842001325).

Almost surely, 2^7684002649 is an apocalyptic number.

It is an amenable number.

7684002649 is a deficient number, since it is larger than the sum of its proper divisors (1).

7684002649 is an equidigital number, since it uses as much as digits as its factorization.

7684002649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 7684002649 is about 87658.4431130282. The cubic root of 7684002649 is about 1973.3123562308.

The spelling of 7684002649 in words is "seven billion, six hundred eighty-four million, two thousand, six hundred forty-nine".