67980936 has 64 divisors (see below), whose sum is σ = 183110400. Its totient is φ = 20962368.

The previous prime is 67980931. The next prime is 67980949. The reversal of 67980936 is 63908976.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (67980931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17875 + ... + 21341.

It is an arithmetic number, because the mean of its divisors is an integer number (2861100).

Almost surely, 2^67980936 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 67980936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91555200).

67980936 is an abundant number, since it is smaller than the sum of its proper divisors (115129464).

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

67980936 is a wasteful number, since it uses less digits than its factorization.

67980936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538 (or 3534 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 67980936 is about 8245.0552454183. The cubic root of 67980936 is about 408.1273631595.

The spelling of 67980936 in words is "sixty-seven million, nine hundred eighty thousand, nine hundred thirty-six".