67407272 has 8 divisors (see below), whose sum is σ = 126388650. Its totient is φ = 33703632.

The previous prime is 67407271. The next prime is 67407289. The reversal of 67407272 is 27270476.

It can be written as a sum of positive squares in only one way, i.e., 63138916 + 4268356 = 7946^2 + 2066^2 .

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

It is not an unprimeable number, because it can be changed into a prime (67407271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4212947 + ... + 4212962.

Almost surely, 2^67407272 is an apocalyptic number.

It is an amenable number.

67407272 is a deficient number, since it is larger than the sum of its proper divisors (58981378).

67407272 is a wasteful number, since it uses less digits than its factorization.

67407272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8425915 (or 8425911 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 67407272 is about 8210.1931767773. The cubic root of 67407272 is about 406.9761107386.

The spelling of 67407272 in words is "sixty-seven million, four hundred seven thousand, two hundred seventy-two".