1983425 has 6 divisors (see below), whose sum is σ = 2459478. Its totient is φ = 1586720.

The previous prime is 1983413. The next prime is 1983427. The reversal of 1983425 is 5243891.

It can be written as a sum of positive squares in 3 ways, for example, as 961 + 1982464 = 31^2 + 1408^2 .

It is not a de Polignac number, because 1983425 - 2⁴ = 1983409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1983391 and 1983400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983427) 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, 39644 + ... + 39693.

It is an arithmetic number, because the mean of its divisors is an integer number (409913).

2^1983425 is an apocalyptic number.

It is an amenable number.

1983425 is a deficient number, since it is larger than the sum of its proper divisors (476053).

1983425 is an equidigital number, since it uses as much as digits as its factorization.

1983425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79347 (or 79342 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 1983425 is about 1408.3412228576. The cubic root of 1983425 is about 125.6430858510.

The spelling of 1983425 in words is "one million, nine hundred eighty-three thousand, four hundred twenty-five".