73546561 has 4 divisors (see below), whose sum is σ = 80232624. Its totient is φ = 66860500.

The previous prime is 73546559. The next prime is 73546591. The reversal of 73546561 is 16564537.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73546561 - 2¹ = 73546559 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 73546561.

It is not an unprimeable number, because it can be changed into a prime (73546531) 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 3 ways as a sum of consecutive naturals, for example, 3343015 + ... + 3343036.

It is an arithmetic number, because the mean of its divisors is an integer number (20058156).

Almost surely, 2^73546561 is an apocalyptic number.

It is an amenable number.

73546561 is a deficient number, since it is larger than the sum of its proper divisors (6686063).

73546561 is a wasteful number, since it uses less digits than its factorization.

73546561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6686062.

The product of its digits is 75600, while the sum is 37.

The square root of 73546561 is about 8575.9291624873. The cubic root of 73546561 is about 418.9743701132.

The spelling of 73546561 in words is "seventy-three million, five hundred forty-six thousand, five hundred sixty-one".