653432443 has 2 divisors, whose sum is σ = 653432444. Its totient is φ = 653432442.

The previous prime is 653432431. The next prime is 653432447. The reversal of 653432443 is 344234356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 653432443 - 2⁵ = 653432411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 653432399 and 653432408.

It is not a weakly prime, because it can be changed into another prime (653432447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326716221 + 326716222.

It is an arithmetic number, because the mean of its divisors is an integer number (326716222).

Almost surely, 2^653432443 is an apocalyptic number.

653432443 is a deficient number, since it is larger than the sum of its proper divisors (1).

653432443 is an equidigital number, since it uses as much as digits as its factorization.

653432443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 34.

The square root of 653432443 is about 25562.3246791054. The cubic root of 653432443 is about 867.7612068494.

Adding to 653432443 its reverse (344234356), we get a palindrome (997666799).

The spelling of 653432443 in words is "six hundred fifty-three million, four hundred thirty-two thousand, four hundred forty-three".