8169445 has 16 divisors (see below), whose sum is σ = 10258560. Its totient is φ = 6237504.

The previous prime is 8169433. The next prime is 8169457. The reversal of 8169445 is 5449618.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8169433) and next prime (8169457).

It is a cyclic number.

It is not a de Polignac number, because 8169445 - 2¹⁵ = 8136677 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14662 + ... + 15208.

It is an arithmetic number, because the mean of its divisors is an integer number (641160).

Almost surely, 2^8169445 is an apocalyptic number.

It is an amenable number.

8169445 is a deficient number, since it is larger than the sum of its proper divisors (2089115).

8169445 is a wasteful number, since it uses less digits than its factorization.

8169445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684.

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

The square root of 8169445 is about 2858.2240989817. The cubic root of 8169445 is about 201.4021880362.

The spelling of 8169445 in words is "eight million, one hundred sixty-nine thousand, four hundred forty-five".