68425807 has 2 divisors, whose sum is σ = 68425808. Its totient is φ = 68425806.

The previous prime is 68425789. The next prime is 68425813. The reversal of 68425807 is 70852486.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68425807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68425807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68425817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34212903 + 34212904.

It is an arithmetic number, because the mean of its divisors is an integer number (34212904).

Almost surely, 2^68425807 is an apocalyptic number.

68425807 is a deficient number, since it is larger than the sum of its proper divisors (1).

68425807 is an equidigital number, since it uses as much as digits as its factorization.

68425807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 68425807 is about 8271.9893012503. The cubic root of 68425807 is about 409.0156975342.

The spelling of 68425807 in words is "sixty-eight million, four hundred twenty-five thousand, eight hundred seven".