8252191 has 4 divisors (see below), whose sum is σ = 8737632. Its totient is φ = 7766752.

The previous prime is 8252183. The next prime is 8252197. The reversal of 8252191 is 1912528.

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 8252191 - 2³ = 8252183 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 (8252197) 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, 242695 + ... + 242728.

It is an arithmetic number, because the mean of its divisors is an integer number (2184408).

Almost surely, 2^8252191 is an apocalyptic number.

8252191 is a deficient number, since it is larger than the sum of its proper divisors (485441).

8252191 is a wasteful number, since it uses less digits than its factorization.

8252191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485440.

The product of its digits is 1440, while the sum is 28.

The square root of 8252191 is about 2872.6627020937. The cubic root of 8252191 is about 202.0798870375.

The spelling of 8252191 in words is "eight million, two hundred fifty-two thousand, one hundred ninety-one".