68424569 has 2 divisors, whose sum is σ = 68424570. Its totient is φ = 68424568.

The previous prime is 68424547. The next prime is 68424611. The reversal of 68424569 is 96542486.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37210000 + 31214569 = 6100^2 + 5587^2 .

It is a cyclic number.

It is not a de Polignac number, because 68424569 - 2²⁴ = 51647353 is a prime.

It is a super-2 number, since 2×68424569² = 9363843285671522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68424509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34212284 + 34212285.

It is an arithmetic number, because the mean of its divisors is an integer number (34212285).

Almost surely, 2^68424569 is an apocalyptic number.

It is an amenable number.

68424569 is a deficient number, since it is larger than the sum of its proper divisors (1).

68424569 is an equidigital number, since it uses as much as digits as its factorization.

68424569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 44.

The square root of 68424569 is about 8271.9144700607. The cubic root of 68424569 is about 409.0132308017.

It can be divided in two parts, 6842 and 4569, that added together give a palindrome (11411).

The spelling of 68424569 in words is "sixty-eight million, four hundred twenty-four thousand, five hundred sixty-nine".