67961412 has 72 divisors (see below), whose sum is σ = 180573120. Its totient is φ = 21510720.

The previous prime is 67961407. The next prime is 67961431. The reversal of 67961412 is 21416976.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174514 + ... + 174902.

It is an arithmetic number, because the mean of its divisors is an integer number (2507960).

Almost surely, 2^67961412 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 67961412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90286560).

67961412 is an abundant number, since it is smaller than the sum of its proper divisors (112611708).

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

67961412 is a wasteful number, since it uses less digits than its factorization.

67961412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 628 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 67961412 is about 8243.8711780328. The cubic root of 67961412 is about 408.0882882754.

The spelling of 67961412 in words is "sixty-seven million, nine hundred sixty-one thousand, four hundred twelve".