1889725 has 12 divisors (see below), whose sum is σ = 2360340. Its totient is φ = 1500800.

The previous prime is 1889717. The next prime is 1889743. The reversal of 1889725 is 5279881.

It can be written as a sum of positive squares in 6 ways, for example, as 181476 + 1708249 = 426^2 + 1307^2 .

It is not a de Polignac number, because 1889725 - 2³ = 1889717 is a prime.

Its product of digits (40320) is a multiple of the sum of its prime factors (560).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6585 + ... + 6865.

It is an arithmetic number, because the mean of its divisors is an integer number (196695).

2^1889725 is an apocalyptic number.

It is an amenable number.

1889725 is a deficient number, since it is larger than the sum of its proper divisors (470615).

1889725 is a wasteful number, since it uses less digits than its factorization.

1889725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 555 counting only the distinct ones).

The product of its digits is 40320, while the sum is 40.

The square root of 1889725 is about 1374.6726883153. The cubic root of 1889725 is about 123.6325621243.

The spelling of 1889725 in words is "one million, eight hundred eighty-nine thousand, seven hundred twenty-five".