8445169 has 4 divisors (see below), whose sum is σ = 8460144. Its totient is φ = 8430196.

The previous prime is 8445161. The next prime is 8445251. The reversal of 8445169 is 9615448.

It is a happy number.

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 8445169 - 2³ = 8445161 is a prime.

It is a super-2 number, since 2×8445169² = 142641758877122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8445161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6607 + ... + 7780.

It is an arithmetic number, because the mean of its divisors is an integer number (2115036).

Almost surely, 2^8445169 is an apocalyptic number.

It is an amenable number.

8445169 is a deficient number, since it is larger than the sum of its proper divisors (14975).

8445169 is a wasteful number, since it uses less digits than its factorization.

8445169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14974.

The product of its digits is 34560, while the sum is 37.

The square root of 8445169 is about 2906.0572946864. The cubic root of 8445169 is about 203.6429821778.

It can be divided in two parts, 8445 and 169, that multiplied together give a triangular number (1427205 = T₁₆₈₉).

The spelling of 8445169 in words is "eight million, four hundred forty-five thousand, one hundred sixty-nine".