653318429 has 2 divisors, whose sum is σ = 653318430. Its totient is φ = 653318428.

The previous prime is 653318359. The next prime is 653318437. The reversal of 653318429 is 924813356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519384100 + 133934329 = 22790^2 + 11573^2 .

It is a cyclic number.

It is not a de Polignac number, because 653318429 - 2¹⁶ = 653252893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (653318489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326659214 + 326659215.

It is an arithmetic number, because the mean of its divisors is an integer number (326659215).

Almost surely, 2^653318429 is an apocalyptic number.

It is an amenable number.

653318429 is a deficient number, since it is larger than the sum of its proper divisors (1).

653318429 is an equidigital number, since it uses as much as digits as its factorization.

653318429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 41.

The square root of 653318429 is about 25560.0944638317. The cubic root of 653318429 is about 867.7107335464.

The spelling of 653318429 in words is "six hundred fifty-three million, three hundred eighteen thousand, four hundred twenty-nine".