67679656 has 48 divisors (see below), whose sum is σ = 140767200. Its totient is φ = 30481440.

The previous prime is 67679629. The next prime is 67679663. The reversal of 67679656 is 65697676.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134301 + ... + 134803.

It is an arithmetic number, because the mean of its divisors is an integer number (2932650).

Almost surely, 2^67679656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67679656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70383600).

67679656 is an abundant number, since it is smaller than the sum of its proper divisors (73087544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67679656 is a wasteful number, since it uses less digits than its factorization.

67679656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 655 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 52.

The square root of 67679656 is about 8226.7646131392. The cubic root of 67679656 is about 407.5235531570.

The spelling of 67679656 in words is "sixty-seven million, six hundred seventy-nine thousand, six hundred fifty-six".