216607753 has 2 divisors, whose sum is σ = 216607754. Its totient is φ = 216607752.

The previous prime is 216607711. The next prime is 216607763. The reversal of 216607753 is 357706612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138603529 + 78004224 = 11773^2 + 8832^2 .

It is a cyclic number.

It is not a de Polignac number, because 216607753 - 2⁹ = 216607241 is a prime.

It is not a weakly prime, because it can be changed into another prime (216607763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108303876 + 108303877.

It is an arithmetic number, because the mean of its divisors is an integer number (108303877).

Almost surely, 2^216607753 is an apocalyptic number.

It is an amenable number.

216607753 is a deficient number, since it is larger than the sum of its proper divisors (1).

216607753 is an equidigital number, since it uses as much as digits as its factorization.

216607753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 216607753 is about 14717.6001100723. The cubic root of 216607753 is about 600.5622072996.

The spelling of 216607753 in words is "two hundred sixteen million, six hundred seven thousand, seven hundred fifty-three".