68199773 has 4 divisors (see below), whose sum is σ = 69650880. Its totient is φ = 66748668.

The previous prime is 68199757. The next prime is 68199787. The reversal of 68199773 is 37799186.

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 a cyclic number.

It is not a de Polignac number, because 68199773 - 2⁴ = 68199757 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 (68199713) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 725483 + ... + 725576.

It is an arithmetic number, because the mean of its divisors is an integer number (17412720).

Almost surely, 2^68199773 is an apocalyptic number.

It is an amenable number.

68199773 is a deficient number, since it is larger than the sum of its proper divisors (1451107).

68199773 is a wasteful number, since it uses less digits than its factorization.

68199773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451106.

The product of its digits is 571536, while the sum is 50.

The square root of 68199773 is about 8258.3153851134. The cubic root of 68199773 is about 408.5648274842.

The spelling of 68199773 in words is "sixty-eight million, one hundred ninety-nine thousand, seven hundred seventy-three".