73506091 has 8 divisors (see below), whose sum is σ = 77130144. Its totient is φ = 69917760.

The previous prime is 73506089. The next prime is 73506131. The reversal of 73506091 is 19060537.

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 73506091 - 2¹ = 73506089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73506061) 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, 4666 + ... + 12991.

It is an arithmetic number, because the mean of its divisors is an integer number (9641268).

Almost surely, 2^73506091 is an apocalyptic number.

73506091 is a deficient number, since it is larger than the sum of its proper divisors (3624053).

73506091 is a wasteful number, since it uses less digits than its factorization.

73506091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17861.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 73506091 is about 8573.5693267157. The cubic root of 73506091 is about 418.8975072227.

The spelling of 73506091 in words is "seventy-three million, five hundred six thousand, ninety-one".