217034963 has 2 divisors, whose sum is σ = 217034964. Its totient is φ = 217034962.

The previous prime is 217034921. The next prime is 217035029. The reversal of 217034963 is 369430712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 217034963 - 2⁸ = 217034707 is a prime.

It is a super-2 number, since 2×217034963² = 94208350328822738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (217033963) 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, 108517481 + 108517482.

It is an arithmetic number, because the mean of its divisors is an integer number (108517482).

Almost surely, 2^217034963 is an apocalyptic number.

217034963 is a deficient number, since it is larger than the sum of its proper divisors (1).

217034963 is an equidigital number, since it uses as much as digits as its factorization.

217034963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 217034963 is about 14732.1065364054. The cubic root of 217034963 is about 600.9567725735.

The spelling of 217034963 in words is "two hundred seventeen million, thirty-four thousand, nine hundred sixty-three".