73668717 has 8 divisors (see below), whose sum is σ = 109138880. Its totient is φ = 49112460.

The previous prime is 73668713. The next prime is 73668733. The reversal of 73668717 is 71786637.

It is a happy number.

It is not a de Polignac number, because 73668717 - 2² = 73668713 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 (73668713) 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 7 ways as a sum of consecutive naturals, for example, 1364209 + ... + 1364262.

It is an arithmetic number, because the mean of its divisors is an integer number (13642360).

Almost surely, 2^73668717 is an apocalyptic number.

It is an amenable number.

73668717 is a deficient number, since it is larger than the sum of its proper divisors (35470163).

73668717 is a wasteful number, since it uses less digits than its factorization.

73668717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728480 (or 2728474 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 73668717 is about 8583.0482347474. The cubic root of 73668717 is about 419.2062047628.

The spelling of 73668717 in words is "seventy-three million, six hundred sixty-eight thousand, seven hundred seventeen".