67677677 has 8 divisors (see below), whose sum is σ = 73696800. Its totient is φ = 61904304.

The previous prime is 67677671. The next prime is 67677683. The reversal of 67677677 is 77677676.

It is an interprime number because it is at equal distance from previous prime (67677671) and next prime (67677683).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67677677 - 2¹² = 67673581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67677671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60863 + ... + 61964.

It is an arithmetic number, because the mean of its divisors is an integer number (9212100).

Almost surely, 2^67677677 is an apocalyptic number.

It is an amenable number.

67677677 is a deficient number, since it is larger than the sum of its proper divisors (6019123).

67677677 is a wasteful number, since it uses less digits than its factorization.

67677677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122875.

The product of its digits is 3630312, while the sum is 53.

The square root of 67677677 is about 8226.6443341134. The cubic root of 67677677 is about 407.5195810280.

Subtracting 67677677 from its reverse (77677676), we obtain a palindrome (9999999).

The spelling of 67677677 in words is "sixty-seven million, six hundred seventy-seven thousand, six hundred seventy-seven".