73000091 has 8 divisors (see below), whose sum is σ = 80655264. Its totient is φ = 65718400.

The previous prime is 73000063. The next prime is 73000093. The reversal of 73000091 is 19000037.

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 73000091 - 2¹⁰ = 72999067 is a prime.

It is a Duffinian number.

73000091 is a modest number, since divided by 91 gives 73 as remainder.

It is not an unprimeable number, because it can be changed into a prime (73000093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92960 + ... + 93741.

It is an arithmetic number, because the mean of its divisors is an integer number (10081908).

Almost surely, 2^73000091 is an apocalyptic number.

73000091 is a deficient number, since it is larger than the sum of its proper divisors (7655173).

73000091 is a wasteful number, since it uses less digits than its factorization.

73000091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186741.

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 73000091 is about 8544.0090706881. The cubic root of 73000091 is about 417.9340933001.

The spelling of 73000091 in words is "seventy-three million, ninety-one", and thus it is an aban number and an uban number.