68748973 has 8 divisors (see below), whose sum is σ = 72504320. Its totient is φ = 65007360.

The previous prime is 68748961. The next prime is 68749007. The reversal of 68748973 is 37984786.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-68748973 is a prime.

It is the 8292-nd Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68748973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68748913) by changing a digit.

It is a nontrivial repunit in base 8291.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7828 + ... + 14098.

It is an arithmetic number, because the mean of its divisors is an integer number (9063040).

Almost surely, 2^68748973 is an apocalyptic number.

It is an amenable number.

68748973 is a deficient number, since it is larger than the sum of its proper divisors (3755347).

68748973 is a wasteful number, since it uses less digits than its factorization.

68748973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6867.

The product of its digits is 2032128, while the sum is 52.

The square root of 68748973 is about 8291.5000452270. The cubic root of 68748973 is about 409.6585954285.

The spelling of 68748973 in words is "sixty-eight million, seven hundred forty-eight thousand, nine hundred seventy-three".