68904017 has 16 divisors (see below), whose sum is σ = 86782080. Its totient is φ = 53246592.

The previous prime is 68903987. The next prime is 68904019. The reversal of 68904017 is 71040986.

It is not a de Polignac number, because 68904017 - 2²² = 64709713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68904019) 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, 4892 + ... + 12717.

It is an arithmetic number, because the mean of its divisors is an integer number (5423880).

Almost surely, 2^68904017 is an apocalyptic number.

It is an amenable number.

68904017 is a deficient number, since it is larger than the sum of its proper divisors (17878063).

68904017 is a wasteful number, since it uses less digits than its factorization.

68904017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17672.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 68904017 is about 8300.8443546425. The cubic root of 68904017 is about 409.9663208504.

The spelling of 68904017 in words is "sixty-eight million, nine hundred four thousand, seventeen".