67943136 has 48 divisors (see below), whose sum is σ = 180520704. Its totient is φ = 22372224.

The previous prime is 67943131. The next prime is 67943149. The reversal of 67943136 is 63134976.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 67943094 and 67943103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67943131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3705 + ... + 12231.

It is an arithmetic number, because the mean of its divisors is an integer number (3760848).

Almost surely, 2^67943136 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 67943136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90260352).

67943136 is an abundant number, since it is smaller than the sum of its proper divisors (112577568).

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

67943136 is a wasteful number, since it uses less digits than its factorization.

67943136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8623 (or 8615 counting only the distinct ones).

The product of its digits is 81648, while the sum is 39.

The square root of 67943136 is about 8242.7626436772. The cubic root of 67943136 is about 408.0517043279.

The spelling of 67943136 in words is "sixty-seven million, nine hundred forty-three thousand, one hundred thirty-six".