5209873 has 4 divisors (see below), whose sum is σ = 5257780. Its totient is φ = 5161968.

The previous prime is 5209861. The next prime is 5209889. The reversal of 5209873 is 3789025.

5209873 is nontrivially palindromic in base 12.

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 3069504 + 2140369 = 1752^2 + 1463^2 .

It is a cyclic number.

It is not a de Polignac number, because 5209873 - 2¹³ = 5201681 is a prime.

It is a super-2 number, since 2×5209873² = 54285553352258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5209823) 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, 23790 + ... + 24007.

It is an arithmetic number, because the mean of its divisors is an integer number (1314445).

Almost surely, 2^5209873 is an apocalyptic number.

It is an amenable number.

5209873 is a deficient number, since it is larger than the sum of its proper divisors (47907).

5209873 is a wasteful number, since it uses less digits than its factorization.

5209873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47906.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 5209873 is about 2282.5146220780. The cubic root of 5209873 is about 173.3573976287.

The spelling of 5209873 in words is "five million, two hundred nine thousand, eight hundred seventy-three".