7668541 has 2 divisors, whose sum is σ = 7668542. Its totient is φ = 7668540.

The previous prime is 7668527. The next prime is 7668559. The reversal of 7668541 is 1458667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6911641 + 756900 = 2629^2 + 870^2 .

It is a cyclic number.

It is not a de Polignac number, because 7668541 - 2⁹ = 7668029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7668541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7638541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3834270 + 3834271.

It is an arithmetic number, because the mean of its divisors is an integer number (3834271).

Almost surely, 2^7668541 is an apocalyptic number.

It is an amenable number.

7668541 is a deficient number, since it is larger than the sum of its proper divisors (1).

7668541 is an equidigital number, since it uses as much as digits as its factorization.

7668541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 7668541 is about 2769.2130651143. The cubic root of 7668541 is about 197.1987909771.

The spelling of 7668541 in words is "seven million, six hundred sixty-eight thousand, five hundred forty-one".