67117297 has 8 divisors (see below), whose sum is σ = 74234216. Its totient is φ = 60279552.

The previous prime is 67117277. The next prime is 67117301. The reversal of 67117297 is 79271176.

It can be written as a sum of positive squares in 4 ways, for example, as 18800896 + 48316401 = 4336^2 + 6951^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67117297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67117277) by changing a digit.

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, 69288 + ... + 70249.

It is an arithmetic number, because the mean of its divisors is an integer number (9279277).

Almost surely, 2^67117297 is an apocalyptic number.

It is an amenable number.

67117297 is a deficient number, since it is larger than the sum of its proper divisors (7116919).

67117297 is a wasteful number, since it uses less digits than its factorization.

67117297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139587.

The product of its digits is 37044, while the sum is 40.

The square root of 67117297 is about 8192.5146933039. The cubic root of 67117297 is about 406.3916904734.

The spelling of 67117297 in words is "sixty-seven million, one hundred seventeen thousand, two hundred ninety-seven".