1928673 has 6 divisors (see below), whose sum is σ = 2785874. Its totient is φ = 1285776.

The previous prime is 1928659. The next prime is 1928677. The reversal of 1928673 is 3768291.

It can be written as a sum of positive squares in only one way, i.e., 1774224 + 154449 = 1332^2 + 393^2 .

It is not a de Polignac number, because 1928673 - 2⁹ = 1928161 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1928677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107140 + ... + 107157.

2^1928673 is an apocalyptic number.

It is an amenable number.

1928673 is a deficient number, since it is larger than the sum of its proper divisors (857201).

1928673 is a wasteful number, since it uses less digits than its factorization.

1928673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214303 (or 214300 counting only the distinct ones).

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

The square root of 1928673 is about 1388.7667190713. The cubic root of 1928673 is about 124.4761651764.

It can be divided in two parts, 1928 and 673, that added together give a square (2601 = 51²).

The spelling of 1928673 in words is "one million, nine hundred twenty-eight thousand, six hundred seventy-three".