73000071 has 48 divisors (see below), whose sum is σ = 117411840. Its totient is φ = 43519680.

The previous prime is 73000063. The next prime is 73000093. The reversal of 73000071 is 17000037.

It is not a de Polignac number, because 73000071 - 2³ = 73000063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73000061) 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 47 ways as a sum of consecutive naturals, for example, 249001 + ... + 249293.

It is an arithmetic number, because the mean of its divisors is an integer number (2446080).

Almost surely, 2^73000071 is an apocalyptic number.

73000071 is a deficient number, since it is larger than the sum of its proper divisors (44411769).

73000071 is a wasteful number, since it uses less digits than its factorization.

73000071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 147, while the sum is 18.

The square root of 73000071 is about 8544.0079002772. The cubic root of 73000071 is about 417.9340551326.

The spelling of 73000071 in words is "seventy-three million, seventy-one", and thus it is an aban number and an uban number.