1983357 has 6 divisors (see below), whose sum is σ = 2864862. Its totient is φ = 1322232.

The previous prime is 1983347. The next prime is 1983361. The reversal of 1983357 is 7533891.

It can be written as a sum of positive squares in only one way, i.e., 1887876 + 95481 = 1374^2 + 309^2 .

It is not a de Polignac number, because 1983357 - 2⁴ = 1983341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983347) 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 5 ways as a sum of consecutive naturals, for example, 110178 + ... + 110195.

It is an arithmetic number, because the mean of its divisors is an integer number (477477).

2^1983357 is an apocalyptic number.

It is an amenable number.

1983357 is a deficient number, since it is larger than the sum of its proper divisors (881505).

1983357 is a wasteful number, since it uses less digits than its factorization.

1983357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220379 (or 220376 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 1983357 is about 1408.3170807741. The cubic root of 1983357 is about 125.6416499800.

The spelling of 1983357 in words is "one million, nine hundred eighty-three thousand, three hundred fifty-seven".