68644607 has 2 divisors, whose sum is σ = 68644608. Its totient is φ = 68644606.

The previous prime is 68644591. The next prime is 68644613. The reversal of 68644607 is 70644686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68644607 - 2⁴ = 68644591 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 (68644307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34322303 + 34322304.

It is an arithmetic number, because the mean of its divisors is an integer number (34322304).

Almost surely, 2^68644607 is an apocalyptic number.

68644607 is a deficient number, since it is larger than the sum of its proper divisors (1).

68644607 is an equidigital number, since it uses as much as digits as its factorization.

68644607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 68644607 is about 8285.2041012880. The cubic root of 68644607 is about 409.4511931447.

The spelling of 68644607 in words is "sixty-eight million, six hundred forty-four thousand, six hundred seven".