8254349891 has 4 divisors (see below), whose sum is σ = 8254849512. Its totient is φ = 8253850272.

The previous prime is 8254349867. The next prime is 8254349893. The reversal of 8254349891 is 1989434528.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8254349891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8254349893) 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, 224150 + ... + 258363.

It is an arithmetic number, because the mean of its divisors is an integer number (2063712378).

Almost surely, 2^8254349891 is an apocalyptic number.

8254349891 is a deficient number, since it is larger than the sum of its proper divisors (499621).

8254349891 is a wasteful number, since it uses less digits than its factorization.

8254349891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499620.

The product of its digits is 2488320, while the sum is 53.

The square root of 8254349891 is about 90853.4528292679. The cubic root of 8254349891 is about 2020.9750782897.

The spelling of 8254349891 in words is "eight billion, two hundred fifty-four million, three hundred forty-nine thousand, eight hundred ninety-one".