68520671 has 2 divisors, whose sum is σ = 68520672. Its totient is φ = 68520670.

The previous prime is 68520667. The next prime is 68520701. The reversal of 68520671 is 17602586.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68520671 - 2² = 68520667 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68520271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34260335 + 34260336.

It is an arithmetic number, because the mean of its divisors is an integer number (34260336).

Almost surely, 2^68520671 is an apocalyptic number.

68520671 is a deficient number, since it is larger than the sum of its proper divisors (1).

68520671 is an equidigital number, since it uses as much as digits as its factorization.

68520671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 68520671 is about 8277.7213652067. The cubic root of 68520671 is about 409.2046269735.

The spelling of 68520671 in words is "sixty-eight million, five hundred twenty thousand, six hundred seventy-one".