73931768 has 8 divisors (see below), whose sum is σ = 138622080. Its totient is φ = 36965880.

The previous prime is 73931761. The next prime is 73931773. The reversal of 73931768 is 86713937.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73931761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4620728 + ... + 4620743.

It is an arithmetic number, because the mean of its divisors is an integer number (17327760).

Almost surely, 2^73931768 is an apocalyptic number.

It is an amenable number.

73931768 is a deficient number, since it is larger than the sum of its proper divisors (64690312).

73931768 is a wasteful number, since it uses less digits than its factorization.

73931768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9241477 (or 9241473 counting only the distinct ones).

The product of its digits is 190512, while the sum is 44.

The square root of 73931768 is about 8598.3584479830. The cubic root of 73931768 is about 419.7045692627.

The spelling of 73931768 in words is "seventy-three million, nine hundred thirty-one thousand, seven hundred sixty-eight".