67961236 has 36 divisors (see below), whose sum is σ = 138971700. Its totient is φ = 28995456.

The previous prime is 67961219. The next prime is 67961237. The reversal of 67961236 is 63216976.

It can be written as a sum of positive squares in 2 ways, for example, as 27562500 + 40398736 = 5250^2 + 6356^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67961237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52080 + ... + 53368.

It is an arithmetic number, because the mean of its divisors is an integer number (3860325).

Almost surely, 2^67961236 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 67961236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69485850).

67961236 is an abundant number, since it is smaller than the sum of its proper divisors (71010464).

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

67961236 is a wasteful number, since it uses less digits than its factorization.

67961236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576 (or 1567 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 67961236 is about 8243.8605034292. The cubic root of 67961236 is about 408.0879359991.

The spelling of 67961236 in words is "sixty-seven million, nine hundred sixty-one thousand, two hundred thirty-six".