87947162243 has 4 divisors (see below), whose sum is σ = 90979823040. Its totient is φ = 84914501448.

The previous prime is 87947162227. The next prime is 87947162257. The reversal of 87947162243 is 34226174978.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 87947162243 - 2⁴ = 87947162227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87947162213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516330355 + ... + 1516330412.

It is an arithmetic number, because the mean of its divisors is an integer number (22744955760).

Almost surely, 2^87947162243 is an apocalyptic number.

87947162243 is a deficient number, since it is larger than the sum of its proper divisors (3032660797).

87947162243 is a wasteful number, since it uses less digits than its factorization.

87947162243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3032660796.

The product of its digits is 4064256, while the sum is 53.

The spelling of 87947162243 in words is "eighty-seven billion, nine hundred forty-seven million, one hundred sixty-two thousand, two hundred forty-three".