67980534 has 8 divisors (see below), whose sum is σ = 135961080. Its totient is φ = 22660176.

The previous prime is 67980491. The next prime is 67980541. The reversal of 67980534 is 43508976.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

67980534 is an admirable number.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5665039 + ... + 5665050.

It is an arithmetic number, because the mean of its divisors is an integer number (16995135).

Almost surely, 2^67980534 is an apocalyptic number.

67980534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

67980534 is a wasteful number, since it uses less digits than its factorization.

67980534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11330094.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 67980534 is about 8245.0308671345. The cubic root of 67980534 is about 408.1265586814.

The spelling of 67980534 in words is "sixty-seven million, nine hundred eighty thousand, five hundred thirty-four".