216633007 has 2 divisors, whose sum is σ = 216633008. Its totient is φ = 216633006.

The previous prime is 216632957. The next prime is 216633017. The reversal of 216633007 is 700336612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 216633007 - 2¹¹ = 216630959 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 (216633017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108316503 + 108316504.

It is an arithmetic number, because the mean of its divisors is an integer number (108316504).

Almost surely, 2^216633007 is an apocalyptic number.

216633007 is a deficient number, since it is larger than the sum of its proper divisors (1).

216633007 is an equidigital number, since it uses as much as digits as its factorization.

216633007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 216633007 is about 14718.4580374440. The cubic root of 216633007 is about 600.5855459666.

Adding to 216633007 its reverse (700336612), we get a palindrome (916969619).

The spelling of 216633007 in words is "two hundred sixteen million, six hundred thirty-three thousand, seven".