68832561 has 16 divisors (see below), whose sum is σ = 105275264. Its totient is φ = 39187584.

The previous prime is 68832479. The next prime is 68832571. The reversal of 68832561 is 16523886.

It is a happy number.

It is not a de Polignac number, because 68832561 - 2⁷ = 68832433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68832571) 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 15 ways as a sum of consecutive naturals, for example, 100 + ... + 11733.

It is an arithmetic number, because the mean of its divisors is an integer number (6579704).

Almost surely, 2^68832561 is an apocalyptic number.

It is an amenable number.

68832561 is a deficient number, since it is larger than the sum of its proper divisors (36442703).

68832561 is a wasteful number, since it uses less digits than its factorization.

68832561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12120.

The product of its digits is 69120, while the sum is 39.

The square root of 68832561 is about 8296.5390977202. The cubic root of 68832561 is about 409.8245551158.

The spelling of 68832561 in words is "sixty-eight million, eight hundred thirty-two thousand, five hundred sixty-one".