68117973 has 32 divisors (see below), whose sum is σ = 118167552. Its totient is φ = 33844800.

The previous prime is 68117969. The next prime is 68117981. The reversal of 68117973 is 37971186.

It is not a de Polignac number, because 68117973 - 2² = 68117969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68117573) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1098 + ... + 11723.

It is an arithmetic number, because the mean of its divisors is an integer number (3692736).

Almost surely, 2^68117973 is an apocalyptic number.

It is an amenable number.

68117973 is a deficient number, since it is larger than the sum of its proper divisors (50049579).

68117973 is a wasteful number, since it uses less digits than its factorization.

68117973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12865.

The product of its digits is 63504, while the sum is 42.

The square root of 68117973 is about 8253.3613152460. The cubic root of 68117973 is about 408.4014155348.

The spelling of 68117973 in words is "sixty-eight million, one hundred seventeen thousand, nine hundred seventy-three".