673884 has 18 divisors (see below), whose sum is σ = 1703520. Its totient is φ = 224616.

The previous prime is 673879. The next prime is 673891. The reversal of 673884 is 488376.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 18719 = 673884 / (6 + 7 + 3 + 8 + 8 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9324 + ... + 9395.

It is an arithmetic number, because the mean of its divisors is an integer number (94640).

2⁶⁷³⁸⁸⁴ is an apocalyptic number.

It is an amenable number.

673884 is an abundant number, since it is smaller than the sum of its proper divisors (1029636).

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

673884 is a wasteful number, since it uses less digits than its factorization.

673884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18729 (or 18724 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 673884 is about 820.9043793281. The cubic root of 673884 is about 87.6721617192.

The spelling of 673884 in words is "six hundred seventy-three thousand, eight hundred eighty-four".