68195973 has 4 divisors (see below), whose sum is σ = 90927968. Its totient is φ = 45463980.

The previous prime is 68195969. The next prime is 68196047. The reversal of 68195973 is 37959186.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68195973 - 2² = 68195969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68195173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11365993 + ... + 11365998.

It is an arithmetic number, because the mean of its divisors is an integer number (22731992).

Almost surely, 2^68195973 is an apocalyptic number.

It is an amenable number.

68195973 is a deficient number, since it is larger than the sum of its proper divisors (22731995).

68195973 is a wasteful number, since it uses less digits than its factorization.

68195973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22731994.

The product of its digits is 408240, while the sum is 48.

The square root of 68195973 is about 8258.0853107727. The cubic root of 68195973 is about 408.5572391149.

The spelling of 68195973 in words is "sixty-eight million, one hundred ninety-five thousand, nine hundred seventy-three".