73800561 has 8 divisors (see below), whose sum is σ = 98630784. Its totient is φ = 49085360.

The previous prime is 73800557. The next prime is 73800569. The reversal of 73800561 is 16500837.

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 73800561 - 2² = 73800557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73800569) by changing a digit.

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, 27246 + ... + 29831.

It is an arithmetic number, because the mean of its divisors is an integer number (12328848).

Almost surely, 2^73800561 is an apocalyptic number.

It is an amenable number.

73800561 is a deficient number, since it is larger than the sum of its proper divisors (24830223).

73800561 is a wasteful number, since it uses less digits than its factorization.

73800561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57511.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 73800561 is about 8590.7252895201. The cubic root of 73800561 is about 419.4561384567.

The spelling of 73800561 in words is "seventy-three million, eight hundred thousand, five hundred sixty-one".