983645233 has 2 divisors, whose sum is σ = 983645234. Its totient is φ = 983645232.

The previous prime is 983645213. The next prime is 983645237. The reversal of 983645233 is 332546389.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 688905009 + 294740224 = 26247^2 + 17168^2 .

It is a cyclic number.

It is not a de Polignac number, because 983645233 - 2²¹ = 981548081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 983645233.

It is not a weakly prime, because it can be changed into another prime (983645237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491822616 + 491822617.

It is an arithmetic number, because the mean of its divisors is an integer number (491822617).

Almost surely, 2^983645233 is an apocalyptic number.

It is an amenable number.

983645233 is a deficient number, since it is larger than the sum of its proper divisors (1).

983645233 is an equidigital number, since it uses as much as digits as its factorization.

983645233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 43.

The square root of 983645233 is about 31363.1189934930. The cubic root of 983645233 is about 994.5184181636.

The spelling of 983645233 in words is "nine hundred eighty-three million, six hundred forty-five thousand, two hundred thirty-three".