1880889 has 4 divisors (see below), whose sum is σ = 2507856. Its totient is φ = 1253924.

The previous prime is 1880887. The next prime is 1880899. The reversal of 1880889 is 9880881.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1880889 - 2¹ = 1880887 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1880889.

It is not an unprimeable number, because it can be changed into a prime (1880881) 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, 313479 + ... + 313484.

It is an arithmetic number, because the mean of its divisors is an integer number (626964).

2^1880889 is an apocalyptic number.

It is an amenable number.

1880889 is a deficient number, since it is larger than the sum of its proper divisors (626967).

1880889 is an equidigital number, since it uses as much as digits as its factorization.

1880889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626966.

The product of its (nonzero) digits is 36864, while the sum is 42.

The square root of 1880889 is about 1371.4550667083. The cubic root of 1880889 is about 123.4395667763.

The spelling of 1880889 in words is "one million, eight hundred eighty thousand, eight hundred eighty-nine".