5217273687 has 4 divisors (see below), whose sum is σ = 6956364920. Its totient is φ = 3478182456.

The previous prime is 5217273673. The next prime is 5217273703. The reversal of 5217273687 is 7863727125.

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

It is not a de Polignac number, because 5217273687 - 2¹⁰ = 5217272663 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 (5217273637) 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, 869545612 + ... + 869545617.

It is an arithmetic number, because the mean of its divisors is an integer number (1739091230).

Almost surely, 2^5217273687 is an apocalyptic number.

5217273687 is a deficient number, since it is larger than the sum of its proper divisors (1739091233).

5217273687 is a wasteful number, since it uses less digits than its factorization.

5217273687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739091232.

The product of its digits is 987840, while the sum is 48.

The square root of 5217273687 is about 72230.6976776495. The cubic root of 5217273687 is about 1734.3944421150.

The spelling of 5217273687 in words is "five billion, two hundred seventeen million, two hundred seventy-three thousand, six hundred eighty-seven".