163877408 has 54 divisors (see below), whose sum is σ = 338006277. Its totient is φ = 78209280.

The previous prime is 163877393. The next prime is 163877411. The reversal of 163877408 is 804778361.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 163123984 + 753424 = 12772^2 + 868^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=9052.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2244860 + ... + 2244932.

Almost surely, 2^163877408 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 163877408

163877408 is an abundant number, since it is smaller than the sum of its proper divisors (174128869).

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

163877408 is an frugal number, since it uses more digits than its factorization.

163877408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 163877408 is about 12801.4611666013. The cubic root of 163877408 is about 547.2339448067.

Multiplying 163877408 by its product of nonzero digits (225792), we get a square (37002207707136 = 6082944²).

The spelling of 163877408 in words is "one hundred sixty-three million, eight hundred seventy-seven thousand, four hundred eight".