8287253421 has 4 divisors (see below), whose sum is σ = 11049671232. Its totient is φ = 5524835612.

The previous prime is 8287253369. The next prime is 8287253431. The reversal of 8287253421 is 1243527828.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8287253421 - 2⁶ = 8287253357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8287253431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381208901 + ... + 1381208906.

It is an arithmetic number, because the mean of its divisors is an integer number (2762417808).

Almost surely, 2^8287253421 is an apocalyptic number.

It is an amenable number.

8287253421 is a deficient number, since it is larger than the sum of its proper divisors (2762417811).

8287253421 is a wasteful number, since it uses less digits than its factorization.

8287253421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762417810.

The product of its digits is 215040, while the sum is 42.

The square root of 8287253421 is about 91034.3529718315. The cubic root of 8287253421 is about 2023.6568583198.

The spelling of 8287253421 in words is "eight billion, two hundred eighty-seven million, two hundred fifty-three thousand, four hundred twenty-one".