8169816 has 16 divisors (see below), whose sum is σ = 20424600. Its totient is φ = 2723264.

The previous prime is 8169767. The next prime is 8169817. The reversal of 8169816 is 6189618.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8169817) 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, 170181 + ... + 170228.

Almost surely, 2^8169816 is an apocalyptic number.

It is an amenable number.

8169816 is an abundant number, since it is smaller than the sum of its proper divisors (12254784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8169816 is a wasteful number, since it uses less digits than its factorization.

8169816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340418 (or 340414 counting only the distinct ones).

The product of its digits is 20736, while the sum is 39.

The square root of 8169816 is about 2858.2889986844. The cubic root of 8169816 is about 201.4052367574.

The spelling of 8169816 in words is "eight million, one hundred sixty-nine thousand, eight hundred sixteen".