8249869 has 4 divisors (see below), whose sum is σ = 8260096. Its totient is φ = 8239644.

The previous prime is 8249837. The next prime is 8249881. The reversal of 8249869 is 9689428.

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 8249869 - 2⁵ = 8249837 is a prime.

It is a super-2 number, since 2×8249869² = 136120677034322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8249809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3789 + ... + 5554.

It is an arithmetic number, because the mean of its divisors is an integer number (2065024).

Almost surely, 2^8249869 is an apocalyptic number.

It is an amenable number.

8249869 is a deficient number, since it is larger than the sum of its proper divisors (10227).

8249869 is an equidigital number, since it uses as much as digits as its factorization.

8249869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10226.

The product of its digits is 248832, while the sum is 46.

The square root of 8249869 is about 2872.2585190056. The cubic root of 8249869 is about 202.0609315256.

The spelling of 8249869 in words is "eight million, two hundred forty-nine thousand, eight hundred sixty-nine".