73427873 has 4 divisors (see below), whose sum is σ = 73602708. Its totient is φ = 73253040.

The previous prime is 73427857. The next prime is 73427897. The reversal of 73427873 is 37872437.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37872437 = 89 ⋅425533.

It can be written as a sum of positive squares in 2 ways, for example, as 28376929 + 45050944 = 5327^2 + 6712^2 .

It is a cyclic number.

It is not a de Polignac number, because 73427873 - 2⁴ = 73427857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73427873.

It is not an unprimeable number, because it can be changed into a prime (73427803) 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, 86786 + ... + 87627.

It is an arithmetic number, because the mean of its divisors is an integer number (18400677).

Almost surely, 2^73427873 is an apocalyptic number.

It is an amenable number.

73427873 is a deficient number, since it is larger than the sum of its proper divisors (174835).

73427873 is a wasteful number, since it uses less digits than its factorization.

73427873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174834.

The product of its digits is 197568, while the sum is 41.

The square root of 73427873 is about 8569.0065351825. The cubic root of 73427873 is about 418.7488712229.

The spelling of 73427873 in words is "seventy-three million, four hundred twenty-seven thousand, eight hundred seventy-three".