67880521 has 8 divisors (see below), whose sum is σ = 74560320. Its totient is φ = 61511472.

The previous prime is 67880509. The next prime is 67880537. The reversal of 67880521 is 12508876.

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

It is a cyclic number.

It is not a de Polignac number, because 67880521 - 2¹⁵ = 67847753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67880551) 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, 77230 + ... + 78103.

It is an arithmetic number, because the mean of its divisors is an integer number (9320040).

Almost surely, 2^67880521 is an apocalyptic number.

It is an amenable number.

67880521 is a deficient number, since it is larger than the sum of its proper divisors (6679799).

67880521 is a wasteful number, since it uses less digits than its factorization.

67880521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155375.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 67880521 is about 8238.9635877336. The cubic root of 67880521 is about 407.9263151086.

The spelling of 67880521 in words is "sixty-seven million, eight hundred eighty thousand, five hundred twenty-one".