67072975 has 12 divisors (see below), whose sum is σ = 84225760. Its totient is φ = 52977600.

The previous prime is 67072961. The next prime is 67072979. The reversal of 67072975 is 57927076.

It is a happy number.

It is not a de Polignac number, because 67072975 - 2¹³ = 67064783 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67072979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15006 + ... + 18955.

Almost surely, 2^67072975 is an apocalyptic number.

67072975 is a deficient number, since it is larger than the sum of its proper divisors (17152785).

67072975 is a wasteful number, since it uses less digits than its factorization.

67072975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34050 (or 34045 counting only the distinct ones).

The product of its (nonzero) digits is 185220, while the sum is 43.

The square root of 67072975 is about 8189.8092163371. The cubic root of 67072975 is about 406.3022149848.

The spelling of 67072975 in words is "sixty-seven million, seventy-two thousand, nine hundred seventy-five".