73919473 has 4 divisors (see below), whose sum is σ = 73982628. Its totient is φ = 73856320.

The previous prime is 73919467. The next prime is 73919477. The reversal of 73919473 is 37491937.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37491937 = 7 ⋅5355991.

It can be written as a sum of positive squares in 2 ways, for example, as 52823824 + 21095649 = 7268^2 + 4593^2 .

It is a cyclic number.

It is not a de Polignac number, because 73919473 - 2⁹ = 73918961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73919477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29788 + ... + 32173.

It is an arithmetic number, because the mean of its divisors is an integer number (18495657).

Almost surely, 2^73919473 is an apocalyptic number.

It is an amenable number.

73919473 is a deficient number, since it is larger than the sum of its proper divisors (63155).

73919473 is a wasteful number, since it uses less digits than its factorization.

73919473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63154.

The product of its digits is 142884, while the sum is 43.

The square root of 73919473 is about 8597.6434562036. The cubic root of 73919473 is about 419.6813020715.

The spelling of 73919473 in words is "seventy-three million, nine hundred nineteen thousand, four hundred seventy-three".