67076729 has 2 divisors, whose sum is σ = 67076730. Its totient is φ = 67076728.

The previous prime is 67076693. The next prime is 67076741. The reversal of 67076729 is 92767076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63282025 + 3794704 = 7955^2 + 1948^2 .

It is a cyclic number.

It is not a de Polignac number, because 67076729 - 2¹⁶ = 67011193 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 67076729.

It is not a weakly prime, because it can be changed into another prime (67076029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33538364 + 33538365.

It is an arithmetic number, because the mean of its divisors is an integer number (33538365).

Almost surely, 2^67076729 is an apocalyptic number.

It is an amenable number.

67076729 is a deficient number, since it is larger than the sum of its proper divisors (1).

67076729 is an equidigital number, since it uses as much as digits as its factorization.

67076729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 222264, while the sum is 44.

The square root of 67076729 is about 8190.0384003984. The cubic root of 67076729 is about 406.3097949381.

The spelling of 67076729 in words is "sixty-seven million, seventy-six thousand, seven hundred twenty-nine".