68466457 has 2 divisors, whose sum is σ = 68466458. Its totient is φ = 68466456.

The previous prime is 68466439. The next prime is 68466467. The reversal of 68466457 is 75466486.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55041561 + 13424896 = 7419^2 + 3664^2 .

It is a cyclic number.

It is not a de Polignac number, because 68466457 - 2¹⁹ = 67942169 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68466427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34233228 + 34233229.

It is an arithmetic number, because the mean of its divisors is an integer number (34233229).

Almost surely, 2^68466457 is an apocalyptic number.

It is an amenable number.

68466457 is a deficient number, since it is larger than the sum of its proper divisors (1).

68466457 is an equidigital number, since it uses as much as digits as its factorization.

68466457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 46.

The square root of 68466457 is about 8274.4460237529. The cubic root of 68466457 is about 409.0966767118.

The spelling of 68466457 in words is "sixty-eight million, four hundred sixty-six thousand, four hundred fifty-seven".