67013312 has 28 divisors (see below), whose sum is σ = 134011416. Its totient is φ = 33246720.

The previous prime is 67013281. The next prime is 67013369. The reversal of 67013312 is 21331076.

It is a happy 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, 4388 + ... + 12380.

It is an arithmetic number, because the mean of its divisors is an integer number (4786122).

Almost surely, 2^67013312 is an apocalyptic number.

It is an amenable number.

67013312 is a deficient number, since it is larger than the sum of its proper divisors (66998104).

67013312 is a wasteful number, since it uses less digits than its factorization.

67013312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8136 (or 8126 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 67013312 is about 8186.1658913071. The cubic root of 67013312 is about 406.1817074316.

Adding to 67013312 its reverse (21331076), we get a palindrome (88344388).

The spelling of 67013312 in words is "sixty-seven million, thirteen thousand, three hundred twelve".