67911313 has 4 divisors (see below), whose sum is σ = 68182128. Its totient is φ = 67640500.

The previous prime is 67911307. The next prime is 67911329. The reversal of 67911313 is 31311976.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67911313 - 2⁵ = 67911281 is a prime.

It is a super-3 number, since 3×67911313³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67911383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135031 + ... + 135532.

It is an arithmetic number, because the mean of its divisors is an integer number (17045532).

Almost surely, 2^67911313 is an apocalyptic number.

It is an amenable number.

67911313 is a deficient number, since it is larger than the sum of its proper divisors (270815).

67911313 is a wasteful number, since it uses less digits than its factorization.

67911313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270814.

The product of its digits is 3402, while the sum is 31.

The square root of 67911313 is about 8240.8320575049. The cubic root of 67911313 is about 407.9879870390.

The spelling of 67911313 in words is "sixty-seven million, nine hundred eleven thousand, three hundred thirteen".