73871113 has 4 divisors (see below), whose sum is σ = 73898308. Its totient is φ = 73843920.

The previous prime is 73871089. The next prime is 73871123. The reversal of 73871113 is 31117837.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55234624 + 18636489 = 7432^2 + 4317^2 .

It is a cyclic number.

It is not a de Polignac number, because 73871113 - 2⁵ = 73871081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73871123) 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 3 ways as a sum of consecutive naturals, for example, 9006 + ... + 15127.

It is an arithmetic number, because the mean of its divisors is an integer number (18474577).

Almost surely, 2^73871113 is an apocalyptic number.

It is an amenable number.

73871113 is a deficient number, since it is larger than the sum of its proper divisors (27195).

73871113 is a wasteful number, since it uses less digits than its factorization.

73871113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27194.

The product of its digits is 3528, while the sum is 31.

The square root of 73871113 is about 8594.8305975162. The cubic root of 73871113 is about 419.5897600435.

It can be divided in two parts, 73871 and 113, that added together give a square (73984 = 272²).

The spelling of 73871113 in words is "seventy-three million, eight hundred seventy-one thousand, one hundred thirteen".