67006672 has 20 divisors (see below), whose sum is σ = 129953860. Its totient is φ = 33470208.

The previous prime is 67006663. The next prime is 67006679. The reversal of 67006672 is 27660076.

It can be written as a sum of positive squares in 2 ways, for example, as 7160976 + 59845696 = 2676^2 + 7736^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67006679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26854 + ... + 29242.

It is an arithmetic number, because the mean of its divisors is an integer number (6497693).

Almost surely, 2^67006672 is an apocalyptic number.

It is an amenable number.

67006672 is a deficient number, since it is larger than the sum of its proper divisors (62947188).

67006672 is a wasteful number, since it uses less digits than its factorization.

67006672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150 (or 4144 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 67006672 is about 8185.7603189930. The cubic root of 67006672 is about 406.1682915120.

The spelling of 67006672 in words is "sixty-seven million, six thousand, six hundred seventy-two".