68517927 has 8 divisors (see below), whose sum is σ = 101508080. Its totient is φ = 45678600.

The previous prime is 68517919. The next prime is 68517931. The reversal of 68517927 is 72971586.

It is not a de Polignac number, because 68517927 - 2³ = 68517919 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 (68515927) 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, 1268824 + ... + 1268877.

It is an arithmetic number, because the mean of its divisors is an integer number (12688510).

Almost surely, 2^68517927 is an apocalyptic number.

68517927 is a deficient number, since it is larger than the sum of its proper divisors (32990153).

68517927 is a wasteful number, since it uses less digits than its factorization.

68517927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537710 (or 2537704 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 68517927 is about 8277.5556174513. Note that the first 3 decimals coincide. The cubic root of 68517927 is about 409.1991645222.

The spelling of 68517927 in words is "sixty-eight million, five hundred seventeen thousand, nine hundred twenty-seven".