8497787243 has 4 divisors (see below), whose sum is σ = 9270313368. Its totient is φ = 7725261120.

The previous prime is 8497787231. The next prime is 8497787261. The reversal of 8497787243 is 3427877948.

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 8497787243 - 2⁴ = 8497787227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8497787293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386263046 + ... + 386263067.

It is an arithmetic number, because the mean of its divisors is an integer number (2317578342).

Almost surely, 2^8497787243 is an apocalyptic number.

8497787243 is a deficient number, since it is larger than the sum of its proper divisors (772526125).

8497787243 is a wasteful number, since it uses less digits than its factorization.

8497787243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772526124.

The product of its digits is 18966528, while the sum is 59.

The square root of 8497787243 is about 92183.4434321044. The cubic root of 8497787243 is about 2040.6504432187.

The spelling of 8497787243 in words is "eight billion, four hundred ninety-seven million, seven hundred eighty-seven thousand, two hundred forty-three".