216676079 has 2 divisors, whose sum is σ = 216676080. Its totient is φ = 216676078.

The previous prime is 216676037. The next prime is 216676093. The reversal of 216676079 is 970676612.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216676079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216675079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108338039 + 108338040.

It is an arithmetic number, because the mean of its divisors is an integer number (108338040).

Almost surely, 2^216676079 is an apocalyptic number.

216676079 is a deficient number, since it is larger than the sum of its proper divisors (1).

216676079 is an equidigital number, since it uses as much as digits as its factorization.

216676079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 216676079 is about 14719.9211614737. The cubic root of 216676079 is about 600.6253470827.

The spelling of 216676079 in words is "two hundred sixteen million, six hundred seventy-six thousand, seventy-nine".