68566807 has 2 divisors, whose sum is σ = 68566808. Its totient is φ = 68566806.

The previous prime is 68566793. The next prime is 68566819. The reversal of 68566807 is 70866586.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68566807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68566507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34283403 + 34283404.

It is an arithmetic number, because the mean of its divisors is an integer number (34283404).

Almost surely, 2^68566807 is an apocalyptic number.

68566807 is a deficient number, since it is larger than the sum of its proper divisors (1).

68566807 is an equidigital number, since it uses as much as digits as its factorization.

68566807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 68566807 is about 8280.5076535198. The cubic root of 68566807 is about 409.2964475817.

The spelling of 68566807 in words is "sixty-eight million, five hundred sixty-six thousand, eight hundred seven".