1673904 has 40 divisors (see below), whose sum is σ = 4430272. Its totient is φ = 544320.

The previous prime is 1673897. The next prime is 1673923. The reversal of 1673904 is 4093761.

It is a happy number.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1659 + ... + 2469.

2^1673904 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 1673904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2215136).

1673904 is an abundant number, since it is smaller than the sum of its proper divisors (2756368).

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

1673904 is a wasteful number, since it uses less digits than its factorization.

1673904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 1673904 is about 1293.7944195273. The cubic root of 1673904 is about 118.7344784884.

It can be divided in two parts, 16 and 73904, that added together give a triangular number (73920 = T₃₈₄).

The spelling of 1673904 in words is "one million, six hundred seventy-three thousand, nine hundred four".