73632665 has 8 divisors (see below), whose sum is σ = 89678400. Its totient is φ = 58026672.

The previous prime is 73632659. The next prime is 73632707. The reversal of 73632665 is 56623637.

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

It is a cyclic number.

It is not a de Polignac number, because 73632665 - 2¹⁶ = 73567129 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 109565 + ... + 110234.

It is an arithmetic number, because the mean of its divisors is an integer number (11209800).

Almost surely, 2^73632665 is an apocalyptic number.

It is an amenable number.

73632665 is a deficient number, since it is larger than the sum of its proper divisors (16045735).

73632665 is a wasteful number, since it uses less digits than its factorization.

73632665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219871.

The product of its digits is 136080, while the sum is 38.

The square root of 73632665 is about 8580.9477914739. The cubic root of 73632665 is about 419.1378098875.

Subtracting from 73632665 its reverse (56623637), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 73632665 in words is "seventy-three million, six hundred thirty-two thousand, six hundred sixty-five".