1673928 has 48 divisors (see below), whose sum is σ = 4614480. Its totient is φ = 548064.

The previous prime is 1673927. The next prime is 1673933. The reversal of 1673928 is 8293761.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1673892 and 1673901.

It is not an unprimeable number, because it can be changed into a prime (1673923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4651 + ... + 4997.

It is an arithmetic number, because the mean of its divisors is an integer number (96135).

2^1673928 is an apocalyptic number.

1673928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1673928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2307240).

1673928 is an abundant number, since it is smaller than the sum of its proper divisors (2940552).

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

1673928 is a wasteful number, since it uses less digits than its factorization.

1673928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 419 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 1673928 is about 1293.8036945379. The cubic root of 1673928 is about 118.7350459470.

It can be divided in two parts, 1673 and 928, that added together give a square (2601 = 51²).

The spelling of 1673928 in words is "one million, six hundred seventy-three thousand, nine hundred twenty-eight".