1936221 has 16 divisors (see below), whose sum is σ = 2976384. Its totient is φ = 1096704.

The previous prime is 1936219. The next prime is 1936223. The reversal of 1936221 is 1226391.

It is an interprime number because it is at equal distance from previous prime (1936219) and next prime (1936223).

It is not a de Polignac number, because 1936221 - 2¹ = 1936219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1936191 and 1936200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1936223) 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 15 ways as a sum of consecutive naturals, for example, 2541 + ... + 3213.

It is an arithmetic number, because the mean of its divisors is an integer number (186024).

2^1936221 is an apocalyptic number.

It is an amenable number.

1936221 is a deficient number, since it is larger than the sum of its proper divisors (1040163).

1936221 is a wasteful number, since it uses less digits than its factorization.

1936221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820.

The product of its digits is 648, while the sum is 24.

The square root of 1936221 is about 1391.4815844991. The cubic root of 1936221 is about 124.6383359354.

The spelling of 1936221 in words is "one million, nine hundred thirty-six thousand, two hundred twenty-one".