73439117 has 4 divisors (see below), whose sum is σ = 75423996. Its totient is φ = 71454240.

The previous prime is 73439087. The next prime is 73439131. The reversal of 73439117 is 71193437.

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 69322276 + 4116841 = 8326^2 + 2029^2 .

It is a cyclic number.

It is not a de Polignac number, because 73439117 - 2⁶ = 73439053 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 (73439017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 992384 + ... + 992457.

It is an arithmetic number, because the mean of its divisors is an integer number (18855999).

Almost surely, 2^73439117 is an apocalyptic number.

It is an amenable number.

73439117 is a deficient number, since it is larger than the sum of its proper divisors (1984879).

73439117 is a wasteful number, since it uses less digits than its factorization.

73439117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984878.

The product of its digits is 15876, while the sum is 35.

The square root of 73439117 is about 8569.6625954585. The cubic root of 73439117 is about 418.7702444508.

The spelling of 73439117 in words is "seventy-three million, four hundred thirty-nine thousand, one hundred seventeen".