67608261 has 12 divisors (see below), whose sum is σ = 111607392. Its totient is φ = 38633256.

The previous prime is 67608257. The next prime is 67608301. The reversal of 67608261 is 16280676.

It is a happy number.

It is not a de Polignac number, because 67608261 - 2² = 67608257 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67608161) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 536511 + ... + 536636.

It is an arithmetic number, because the mean of its divisors is an integer number (9300616).

Almost surely, 2^67608261 is an apocalyptic number.

It is an amenable number.

67608261 is a deficient number, since it is larger than the sum of its proper divisors (43999131).

67608261 is a wasteful number, since it uses less digits than its factorization.

67608261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073160 (or 1073157 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 67608261 is about 8222.4242775473. The cubic root of 67608261 is about 407.3802044140.

The spelling of 67608261 in words is "sixty-seven million, six hundred eight thousand, two hundred sixty-one".