67056789 has 16 divisors (see below), whose sum is σ = 94943232. Its totient is φ = 41952768.

The previous prime is 67056763. The next prime is 67056877. The reversal of 67056789 is 98765076.

It is not a de Polignac number, because 67056789 - 2⁹ = 67056277 is a prime.

It is a super-2 number, since 2×67056789² = 8993225901981042, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67056739) 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 in 15 ways as a sum of consecutive naturals, for example, 17817 + ... + 21249.

It is an arithmetic number, because the mean of its divisors is an integer number (5933952).

Almost surely, 2^67056789 is an apocalyptic number.

It is an amenable number.

67056789 is a deficient number, since it is larger than the sum of its proper divisors (27886443).

67056789 is a wasteful number, since it uses less digits than its factorization.

67056789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836.

The product of its (nonzero) digits is 635040, while the sum is 48.

The square root of 67056789 is about 8188.8209774057. The cubic root of 67056789 is about 406.2695295069.

The spelling of 67056789 in words is "sixty-seven million, fifty-six thousand, seven hundred eighty-nine".