68890017 has 8 divisors (see below), whose sum is σ = 104975296. Its totient is φ = 39365712.

The previous prime is 68890009. The next prime is 68890033. The reversal of 68890017 is 71009886.

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

It is not a de Polignac number, because 68890017 - 2³ = 68890009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68890057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1640218 + ... + 1640259.

It is an arithmetic number, because the mean of its divisors is an integer number (13121912).

Almost surely, 2^68890017 is an apocalyptic number.

It is an amenable number.

68890017 is a deficient number, since it is larger than the sum of its proper divisors (36085279).

68890017 is a wasteful number, since it uses less digits than its factorization.

68890017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280487.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 68890017 is about 8300.0010240963. The cubic root of 68890017 is about 409.9385531551.

The spelling of 68890017 in words is "sixty-eight million, eight hundred ninety thousand, seventeen".