73606561 has 8 divisors (see below), whose sum is σ = 84185024. Its totient is φ = 63043920.

The previous prime is 73606541. The next prime is 73606567. The reversal of 73606561 is 16560637.

It is a happy number.

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 73606561 - 2¹⁵ = 73573793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73606567) 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, 8746 + ... + 14956.

It is an arithmetic number, because the mean of its divisors is an integer number (10523128).

Almost surely, 2^73606561 is an apocalyptic number.

It is an amenable number.

73606561 is a deficient number, since it is larger than the sum of its proper divisors (10578463).

73606561 is a wasteful number, since it uses less digits than its factorization.

73606561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7911.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 73606561 is about 8579.4266125424. The cubic root of 73606561 is about 419.0882736000.

The spelling of 73606561 in words is "seventy-three million, six hundred six thousand, five hundred sixty-one".