67871424 has 56 divisors (see below), whose sum is σ = 181782720. Its totient is φ = 22345984.

The previous prime is 67871393. The next prime is 67871449. The reversal of 67871424 is 42417876.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13807 + ... + 18065.

It is an arithmetic number, because the mean of its divisors is an integer number (3246120).

Almost surely, 2^67871424 is an apocalyptic number.

67871424 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67871424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90891360).

67871424 is an abundant number, since it is smaller than the sum of its proper divisors (113911296).

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

67871424 is a wasteful number, since it uses less digits than its factorization.

67871424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4357 (or 4347 counting only the distinct ones).

The product of its digits is 75264, while the sum is 39.

The square root of 67871424 is about 8238.4114973701. The cubic root of 67871424 is about 407.9080915622.

The spelling of 67871424 in words is "sixty-seven million, eight hundred seventy-one thousand, four hundred twenty-four".