67000072 has 8 divisors (see below), whose sum is σ = 125625150. Its totient is φ = 33500032.

The previous prime is 67000069. The next prime is 67000091. The reversal of 67000072 is 27000076.

It can be written as a sum of positive squares in only one way, i.e., 47692836 + 19307236 = 6906^2 + 4394^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4187497 + ... + 4187512.

Almost surely, 2^67000072 is an apocalyptic number.

It is an amenable number.

67000072 is a deficient number, since it is larger than the sum of its proper divisors (58625078).

67000072 is a wasteful number, since it uses less digits than its factorization.

67000072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8375015 (or 8375011 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 67000072 is about 8185.3571699713. The cubic root of 67000072 is about 406.1549555328.

The spelling of 67000072 in words is "sixty-seven million, seventy-two", and thus it is an aban number and an uban number.