67412689 has 2 divisors, whose sum is σ = 67412690. Its totient is φ = 67412688.

The previous prime is 67412647. The next prime is 67412707. The reversal of 67412689 is 98621476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40195600 + 27217089 = 6340^2 + 5217^2 .

It is a cyclic number.

It is not a de Polignac number, because 67412689 - 2¹¹ = 67410641 is a prime.

It is not a weakly prime, because it can be changed into another prime (67419689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33706344 + 33706345.

It is an arithmetic number, because the mean of its divisors is an integer number (33706345).

Almost surely, 2^67412689 is an apocalyptic number.

It is an amenable number.

67412689 is a deficient number, since it is larger than the sum of its proper divisors (1).

67412689 is an equidigital number, since it uses as much as digits as its factorization.

67412689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 67412689 is about 8210.5230649454. The cubic root of 67412689 is about 406.9870122851.

The spelling of 67412689 in words is "sixty-seven million, four hundred twelve thousand, six hundred eighty-nine".