73541689 has 4 divisors (see below), whose sum is σ = 79198756. Its totient is φ = 67884624.

The previous prime is 73541669. The next prime is 73541701. The reversal of 73541689 is 98614537.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5198400 + 68343289 = 2280^2 + 8267^2 .

It is a cyclic number.

It is not a de Polignac number, because 73541689 - 2⁹ = 73541177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73541669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2828514 + ... + 2828539.

It is an arithmetic number, because the mean of its divisors is an integer number (19799689).

Almost surely, 2^73541689 is an apocalyptic number.

It is an amenable number.

73541689 is a deficient number, since it is larger than the sum of its proper divisors (5657067).

73541689 is a wasteful number, since it uses less digits than its factorization.

73541689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5657066.

The product of its digits is 181440, while the sum is 43.

The square root of 73541689 is about 8575.6451069293. The cubic root of 73541689 is about 418.9651184310.

It can be divided in two parts, 735 and 41689, that added together give a palindrome (42424).

The spelling of 73541689 in words is "seventy-three million, five hundred forty-one thousand, six hundred eighty-nine".