67384656 has 80 divisors (see below), whose sum is σ = 194888320. Its totient is φ = 22291200.

The previous prime is 67384631. The next prime is 67384663. The reversal of 67384656 is 65648376.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64716 + ... + 65748.

It is an arithmetic number, because the mean of its divisors is an integer number (2436104).

Almost surely, 2^67384656 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 67384656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97444160).

67384656 is an abundant number, since it is smaller than the sum of its proper divisors (127503664).

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

67384656 is a wasteful number, since it uses less digits than its factorization.

67384656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201 (or 1189 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 67384656 is about 8208.8157489372. The cubic root of 67384656 is about 406.9305904210.

The spelling of 67384656 in words is "sixty-seven million, three hundred eighty-four thousand, six hundred fifty-six".