8487513373 has 4 divisors (see below), whose sum is σ = 8544476700. Its totient is φ = 8430550048.

The previous prime is 8487513367. The next prime is 8487513407. The reversal of 8487513373 is 3733157848.

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 4404047769 + 4083465604 = 66363^2 + 63902^2 .

It is a cyclic number.

It is not a de Polignac number, because 8487513373 - 2²¹ = 8485416221 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 (8487513323) 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, 28481440 + ... + 28481737.

It is an arithmetic number, because the mean of its divisors is an integer number (2136119175).

Almost surely, 2^8487513373 is an apocalyptic number.

It is an amenable number.

8487513373 is a deficient number, since it is larger than the sum of its proper divisors (56963327).

8487513373 is a wasteful number, since it uses less digits than its factorization.

8487513373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56963326.

The product of its digits is 1693440, while the sum is 49.

The square root of 8487513373 is about 92127.7014420744. The cubic root of 8487513373 is about 2039.8277258245.

The spelling of 8487513373 in words is "eight billion, four hundred eighty-seven million, five hundred thirteen thousand, three hundred seventy-three".