8169408 has 84 divisors (see below), whose sum is σ = 25240488. Its totient is φ = 2511360.

The previous prime is 8169391. The next prime is 8169409. The reversal of 8169408 is 8049618.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8169409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6943 + ... + 8033.

It is an arithmetic number, because the mean of its divisors is an integer number (300482).

Almost surely, 2^8169408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8169408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12620244).

8169408 is an abundant number, since it is smaller than the sum of its proper divisors (17071080).

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

8169408 is a wasteful number, since it uses less digits than its factorization.

8169408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 8169408 is about 2858.2176264239. The cubic root of 8169408 is about 201.4018839807.

The spelling of 8169408 in words is "eight million, one hundred sixty-nine thousand, four hundred eight".