67256673 has 16 divisors (see below), whose sum is σ = 98062272. Its totient is φ = 40664000.

The previous prime is 67256659. The next prime is 67256681. The reversal of 67256673 is 37665276.

It is a cyclic number.

It is not a de Polignac number, because 67256673 - 2²⁰ = 66208097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (67256603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13003 + ... + 17423.

It is an arithmetic number, because the mean of its divisors is an integer number (6128892).

Almost surely, 2^67256673 is an apocalyptic number.

It is an amenable number.

67256673 is a deficient number, since it is larger than the sum of its proper divisors (30805599).

67256673 is a wasteful number, since it uses less digits than its factorization.

67256673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4896.

The product of its digits is 317520, while the sum is 42.

The square root of 67256673 is about 8201.0165833267. The cubic root of 67256673 is about 406.6728007525.

The spelling of 67256673 in words is "sixty-seven million, two hundred fifty-six thousand, six hundred seventy-three".