163827720 has 96 divisors (see below), whose sum is σ = 608512320. Its totient is φ = 37445760.

The previous prime is 163827701. The next prime is 163827731. The reversal of 163827720 is 27728361.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29986 + ... + 35025.

It is an arithmetic number, because the mean of its divisors is an integer number (6338670).

Almost surely, 2^163827720 is an apocalyptic number.

163827720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163827720 is an abundant number, since it is smaller than the sum of its proper divisors (444684600).

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

163827720 is a wasteful number, since it uses less digits than its factorization.

163827720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65035 (or 65028 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 163827720 is about 12799.5203035114. The cubic root of 163827720 is about 547.1786316935.

The spelling of 163827720 in words is "one hundred sixty-three million, eight hundred twenty-seven thousand, seven hundred twenty".