73968665 has 8 divisors (see below), whose sum is σ = 88941888. Its totient is φ = 59055280.

The previous prime is 73968623. The next prime is 73968677. The reversal of 73968665 is 56686937.

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-73968665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 12191 + ... + 17220.

It is an arithmetic number, because the mean of its divisors is an integer number (11117736).

Almost surely, 2^73968665 is an apocalyptic number.

It is an amenable number.

73968665 is a deficient number, since it is larger than the sum of its proper divisors (14973223).

73968665 is a wasteful number, since it uses less digits than its factorization.

73968665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29919.

The product of its digits is 1632960, while the sum is 50.

The square root of 73968665 is about 8600.5037643152. The cubic root of 73968665 is about 419.7743780628.

It can be divided in two parts, 7396 and 8665, that added together give a palindrome (16061).

The spelling of 73968665 in words is "seventy-three million, nine hundred sixty-eight thousand, six hundred sixty-five".