73044905 has 4 divisors (see below), whose sum is σ = 87653892. Its totient is φ = 58435920.

The previous prime is 73044899. The next prime is 73044913. The reversal of 73044905 is 50944037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50944037 = 593 ⋅85909.

It can be written as a sum of positive squares in 2 ways, for example, as 54700816 + 18344089 = 7396^2 + 4283^2 .

It is not a de Polignac number, because 73044905 - 2⁴ = 73044889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7304486 + ... + 7304495.

It is an arithmetic number, because the mean of its divisors is an integer number (21913473).

Almost surely, 2^73044905 is an apocalyptic number.

It is an amenable number.

73044905 is a deficient number, since it is larger than the sum of its proper divisors (14608987).

73044905 is a wasteful number, since it uses less digits than its factorization.

73044905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14608986.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 73044905 is about 8546.6312076748. The cubic root of 73044905 is about 418.0195976099.

The spelling of 73044905 in words is "seventy-three million, forty-four thousand, nine hundred five".