67406872 has 32 divisors (see below), whose sum is σ = 136836000. Its totient is φ = 30945024.

The previous prime is 67406869. The next prime is 67406923. The reversal of 67406872 is 27860476.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19068 + ... + 22324.

It is an arithmetic number, because the mean of its divisors is an integer number (4276125).

Almost surely, 2^67406872 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 67406872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68418000).

67406872 is an abundant number, since it is smaller than the sum of its proper divisors (69429128).

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

67406872 is a wasteful number, since it uses less digits than its factorization.

67406872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475 (or 3471 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 67406872 is about 8210.1688167784. The cubic root of 67406872 is about 406.9753057277.

The spelling of 67406872 in words is "sixty-seven million, four hundred six thousand, eight hundred seventy-two".