68910317 has 24 divisors (see below), whose sum is σ = 83174400. Its totient is φ = 56881440.

The previous prime is 68910313. The next prime is 68910329. The reversal of 68910317 is 71301986.

It is not a de Polignac number, because 68910317 - 2² = 68910313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68910311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 346184 + ... + 346382.

It is an arithmetic number, because the mean of its divisors is an integer number (3465600).

Almost surely, 2^68910317 is an apocalyptic number.

It is an amenable number.

68910317 is a deficient number, since it is larger than the sum of its proper divisors (14264083).

68910317 is a wasteful number, since it uses less digits than its factorization.

68910317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 68910317 is about 8301.2238254368. The cubic root of 68910317 is about 409.9788150862.

The spelling of 68910317 in words is "sixty-eight million, nine hundred ten thousand, three hundred seventeen".