216296653 has 2 divisors, whose sum is σ = 216296654. Its totient is φ = 216296652.

The previous prime is 216296609. The next prime is 216296677. The reversal of 216296653 is 356692612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183142089 + 33154564 = 13533^2 + 5758^2 .

It is a cyclic number.

It is not a de Polignac number, because 216296653 - 2⁹ = 216296141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216296603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108148326 + 108148327.

It is an arithmetic number, because the mean of its divisors is an integer number (108148327).

Almost surely, 2^216296653 is an apocalyptic number.

It is an amenable number.

216296653 is a deficient number, since it is larger than the sum of its proper divisors (1).

216296653 is an equidigital number, since it uses as much as digits as its factorization.

216296653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 216296653 is about 14707.0273338972. The cubic root of 216296653 is about 600.2745530522.

It can be divided in two parts, 21629 and 6653, that added together give a palindrome (28282).

The spelling of 216296653 in words is "two hundred sixteen million, two hundred ninety-six thousand, six hundred fifty-three".