73873845 has 12 divisors (see below), whose sum is σ = 128048076. Its totient is φ = 39399360.

The previous prime is 73873819. The next prime is 73873847. The reversal of 73873845 is 54837837.

It can be written as a sum of positive squares in 2 ways, for example, as 29877156 + 43996689 = 5466^2 + 6633^2 .

It is not a de Polignac number, because 73873845 - 2¹⁵ = 73841077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1641641 = 73873845 / (7 + 3 + 8 + 7 + 3 + 8 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 73873845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73873847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 820776 + ... + 820865.

It is an arithmetic number, because the mean of its divisors is an integer number (10670673).

Almost surely, 2^73873845 is an apocalyptic number.

It is an amenable number.

73873845 is a deficient number, since it is larger than the sum of its proper divisors (54174231).

73873845 is a wasteful number, since it uses less digits than its factorization.

73873845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641652 (or 1641649 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 73873845 is about 8594.9895287894. The cubic root of 73873845 is about 419.5949325891.

The spelling of 73873845 in words is "seventy-three million, eight hundred seventy-three thousand, eight hundred forty-five".