73673405 has 24 divisors (see below), whose sum is σ = 97633368. Its totient is φ = 53053056.

The previous prime is 73673389. The next prime is 73673407. The reversal of 73673405 is 50437637.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4084441 + 69588964 = 2021^2 + 8342^2 .

It is not a de Polignac number, because 73673405 - 2⁴ = 73673389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73673407) 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 23 ways as a sum of consecutive naturals, for example, 119879 + ... + 120491.

It is an arithmetic number, because the mean of its divisors is an integer number (4068057).

Almost surely, 2^73673405 is an apocalyptic number.

It is an amenable number.

73673405 is a deficient number, since it is larger than the sum of its proper divisors (23959963).

73673405 is a wasteful number, since it uses less digits than its factorization.

73673405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 35.

The square root of 73673405 is about 8583.3213268524. The cubic root of 73673405 is about 419.2150968094.

The spelling of 73673405 in words is "seventy-three million, six hundred seventy-three thousand, four hundred five".