1889057 has 4 divisors (see below), whose sum is σ = 2000196. Its totient is φ = 1777920.

The previous prime is 1889053. The next prime is 1889077. The reversal of 1889057 is 7509881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7509881 = 457 ⋅16433.

It can be written as a sum of positive squares in 2 ways, for example, as 1263376 + 625681 = 1124^2 + 791^2 .

It is a cyclic number.

It is not a de Polignac number, because 1889057 - 2² = 1889053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1889057.

It is not an unprimeable number, because it can be changed into a prime (1889051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55544 + ... + 55577.

It is an arithmetic number, because the mean of its divisors is an integer number (500049).

2^1889057 is an apocalyptic number.

1889057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1889057 is a deficient number, since it is larger than the sum of its proper divisors (111139).

1889057 is a wasteful number, since it uses less digits than its factorization.

1889057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111138.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 1889057 is about 1374.4296999119. The cubic root of 1889057 is about 123.6179927584.

The spelling of 1889057 in words is "one million, eight hundred eighty-nine thousand, fifty-seven".