67427568 has 120 divisors (see below), whose sum is σ = 205368800. Its totient is φ = 20528640.

The previous prime is 67427551. The next prime is 67427587. The reversal of 67427568 is 86572476.

67427568 is a `hidden beast` number, since 67 + 4 + 27 + 568 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 338733 + ... + 338931.

Almost surely, 2^67427568 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 67427568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102684400).

67427568 is an abundant number, since it is smaller than the sum of its proper divisors (137941232).

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

67427568 is a wasteful number, since it uses less digits than its factorization.

67427568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 398 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 67427568 is about 8211.4291082612. The cubic root of 67427568 is about 407.0169528120.

The spelling of 67427568 in words is "sixty-seven million, four hundred twenty-seven thousand, five hundred sixty-eight".