67315312 has 20 divisors (see below), whose sum is σ = 131105200. Its totient is φ = 33481728.

The previous prime is 67315289. The next prime is 67315333. The reversal of 67315312 is 21351376.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7812 + ... + 13987.

It is an arithmetic number, because the mean of its divisors is an integer number (6555260).

Almost surely, 2^67315312 is an apocalyptic number.

It is an amenable number.

67315312 is a deficient number, since it is larger than the sum of its proper divisors (63789888).

67315312 is a wasteful number, since it uses less digits than its factorization.

67315312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22000 (or 21994 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 67315312 is about 8204.5909099723. The cubic root of 67315312 is about 406.7909548737.

Adding to 67315312 its reverse (21351376), we get a palindrome (88666688).

The spelling of 67315312 in words is "sixty-seven million, three hundred fifteen thousand, three hundred twelve".