1883221 has 6 divisors (see below), whose sum is σ = 1919222. Its totient is φ = 1847880.

The previous prime is 1883213. The next prime is 1883227. The reversal of 1883221 is 1223881.

It can be written as a sum of positive squares in only one way, i.e., 1535121 + 348100 = 1239^2 + 590^2 .

It is not a de Polignac number, because 1883221 - 2³ = 1883213 is a prime.

It is an Ulam number.

It is a Duffinian number.

1883221 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1883227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3211 + ... + 3751.

2^1883221 is an apocalyptic number.

It is an amenable number.

1883221 is a deficient number, since it is larger than the sum of its proper divisors (36001).

1883221 is an frugal number, since it uses more digits than its factorization.

1883221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 600 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 1883221 is about 1372.3049952543. The cubic root of 1883221 is about 123.4905607804.

The spelling of 1883221 in words is "one million, eight hundred eighty-three thousand, two hundred twenty-one".