68017641 has 4 divisors (see below), whose sum is σ = 90690192. Its totient is φ = 45345092.

The previous prime is 68017637. The next prime is 68017679. The reversal of 68017641 is 14671086.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68017641 - 2² = 68017637 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68017681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11336271 + ... + 11336276.

It is an arithmetic number, because the mean of its divisors is an integer number (22672548).

Almost surely, 2^68017641 is an apocalyptic number.

It is an amenable number.

68017641 is a deficient number, since it is larger than the sum of its proper divisors (22672551).

68017641 is a wasteful number, since it uses less digits than its factorization.

68017641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22672550.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 68017641 is about 8247.2808246112. The cubic root of 68017641 is about 408.2008034525.

The spelling of 68017641 in words is "sixty-eight million, seventeen thousand, six hundred forty-one".