73608661 has 8 divisors (see below), whose sum is σ = 84487104. Its totient is φ = 62820960.

The previous prime is 73608659. The next prime is 73608683. The reversal of 73608661 is 16680637.

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 73608661 - 2¹ = 73608659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73608661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73608631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20935 + ... + 24196.

It is an arithmetic number, because the mean of its divisors is an integer number (10560888).

Almost surely, 2^73608661 is an apocalyptic number.

It is an amenable number.

73608661 is a deficient number, since it is larger than the sum of its proper divisors (10878443).

73608661 is a wasteful number, since it uses less digits than its factorization.

73608661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45371.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 73608661 is about 8579.5489974707. The cubic root of 73608661 is about 419.0922591007.

The spelling of 73608661 in words is "seventy-three million, six hundred eight thousand, six hundred sixty-one".