2117479207 has 2 divisors, whose sum is σ = 2117479208. Its totient is φ = 2117479206.

The previous prime is 2117479163. The next prime is 2117479213. The reversal of 2117479207 is 7029747112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2117479207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2117479207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2117479307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058739603 + 1058739604.

It is an arithmetic number, because the mean of its divisors is an integer number (1058739604).

Almost surely, 2^2117479207 is an apocalyptic number.

2117479207 is a deficient number, since it is larger than the sum of its proper divisors (1).

2117479207 is an equidigital number, since it uses as much as digits as its factorization.

2117479207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 40.

The square root of 2117479207 is about 46016.0755280152. The cubic root of 2117479207 is about 1284.1222905994.

The spelling of 2117479207 in words is "two billion, one hundred seventeen million, four hundred seventy-nine thousand, two hundred seven".