163817948 has 24 divisors (see below), whose sum is σ = 332529792. Its totient is φ = 69159024.

The previous prime is 163817947. The next prime is 163817957. The reversal of 163817948 is 849718361.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163817947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41786 + ... + 45537.

It is an arithmetic number, because the mean of its divisors is an integer number (13855408).

Almost surely, 2^163817948 is an apocalyptic number.

It is an amenable number.

163817948 is an abundant number, since it is smaller than the sum of its proper divisors (168711844).

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

163817948 is a wasteful number, since it uses less digits than its factorization.

163817948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87401 (or 87399 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 163817948 is about 12799.1385647629. The cubic root of 163817948 is about 547.1677521022.

The spelling of 163817948 in words is "one hundred sixty-three million, eight hundred seventeen thousand, nine hundred forty-eight".