67320612 has 96 divisors (see below), whose sum is σ = 189987840. Its totient is φ = 20528640.

The previous prime is 67320607. The next prime is 67320661. The reversal of 67320612 is 21602376.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67437 + ... + 68427.

It is an arithmetic number, because the mean of its divisors is an integer number (1979040).

Almost surely, 2^67320612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67320612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94993920).

67320612 is an abundant number, since it is smaller than the sum of its proper divisors (122667228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67320612 is a wasteful number, since it uses less digits than its factorization.

67320612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058 (or 1050 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 67320612 is about 8204.9138935153. The cubic root of 67320612 is about 406.8016306789.

Adding to 67320612 its reverse (21602376), we get a palindrome (88922988).

The spelling of 67320612 in words is "sixty-seven million, three hundred twenty thousand, six hundred twelve".