67120812 has 120 divisors (see below), whose sum is σ = 196978320. Its totient is φ = 19751040.

The previous prime is 67120789. The next prime is 67120817. The reversal of 67120812 is 21802176.

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

It is not an unprimeable number, because it can be changed into a prime (67120817) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 131614 + ... + 132122.

It is an arithmetic number, because the mean of its divisors is an integer number (1641486).

Almost surely, 2^67120812 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 67120812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98489160).

67120812 is an abundant number, since it is smaller than the sum of its proper divisors (129857508).

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

67120812 is a wasteful number, since it uses less digits than its factorization.

67120812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 67120812 is about 8192.7292155911. The cubic root of 67120812 is about 406.3987847294.

Adding to 67120812 its reverse (21802176), we get a palindrome (88922988).

The spelling of 67120812 in words is "sixty-seven million, one hundred twenty thousand, eight hundred twelve".