1984313 has 4 divisors (see below), whose sum is σ = 1987188. Its totient is φ = 1981440.

The previous prime is 1984309. The next prime is 1984319. The reversal of 1984313 is 3134891.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1517824 + 466489 = 1232^2 + 683^2 .

It is a cyclic number.

It is not a de Polignac number, because 1984313 - 2² = 1984309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1984319) 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, 293 + ... + 2013.

It is an arithmetic number, because the mean of its divisors is an integer number (496797).

2^1984313 is an apocalyptic number.

It is an amenable number.

1984313 is a deficient number, since it is larger than the sum of its proper divisors (2875).

1984313 is a wasteful number, since it uses less digits than its factorization.

1984313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874.

The product of its digits is 2592, while the sum is 29.

The square root of 1984313 is about 1408.6564520848. The cubic root of 1984313 is about 125.6618336255.

The spelling of 1984313 in words is "one million, nine hundred eighty-four thousand, three hundred thirteen".