73036591 has 4 divisors (see below), whose sum is σ = 73066552. Its totient is φ = 73006632.

The previous prime is 73036571. The next prime is 73036609. The reversal of 73036591 is 19563037.

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

It is a cyclic number.

It is not a de Polignac number, because 73036591 - 2⁵ = 73036559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73036501) 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, 10965 + ... + 16318.

It is an arithmetic number, because the mean of its divisors is an integer number (18266638).

Almost surely, 2^73036591 is an apocalyptic number.

73036591 is a deficient number, since it is larger than the sum of its proper divisors (29961).

73036591 is a wasteful number, since it uses less digits than its factorization.

73036591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29960.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 73036591 is about 8546.1448033602. The cubic root of 73036591 is about 418.0037372894.

The spelling of 73036591 in words is "seventy-three million, thirty-six thousand, five hundred ninety-one".