163674 has 32 divisors (see below), whose sum is σ = 416640. Its totient is φ = 46656.

The previous prime is 163673. The next prime is 163679. The reversal of 163674 is 476361.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is not an unprimeable number, because it can be changed into a prime (163673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162 + ... + 594.

It is an arithmetic number, because the mean of its divisors is an integer number (13020).

2¹⁶³⁶⁷⁴ is an apocalyptic number.

163674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 163674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208320).

163674 is an abundant number, since it is smaller than the sum of its proper divisors (252966).

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

163674 is a wasteful number, since it uses less digits than its factorization.

163674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 445 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 163674 is about 404.5664345939. The cubic root of 163674 is about 54.7007438401.

The spelling of 163674 in words is "one hundred sixty-three thousand, six hundred seventy-four".