73523873 has 4 divisors (see below), whose sum is σ = 74211120. Its totient is φ = 72836628.

The previous prime is 73523869. The next prime is 73523897. The reversal of 73523873 is 37832537.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37832537 = 37 ⋅1022501.

It is a cyclic number.

It is not a de Polignac number, because 73523873 - 2² = 73523869 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73523803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343463 + ... + 343676.

It is an arithmetic number, because the mean of its divisors is an integer number (18552780).

Almost surely, 2^73523873 is an apocalyptic number.

It is an amenable number.

73523873 is a deficient number, since it is larger than the sum of its proper divisors (687247).

73523873 is a wasteful number, since it uses less digits than its factorization.

73523873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687246.

The product of its digits is 105840, while the sum is 38.

The square root of 73523873 is about 8574.6062883377. The cubic root of 73523873 is about 418.9312832668.

The spelling of 73523873 in words is "seventy-three million, five hundred twenty-three thousand, eight hundred seventy-three".