2117099827 has 2 divisors, whose sum is σ = 2117099828. Its totient is φ = 2117099826.

The previous prime is 2117099807. The next prime is 2117099839. The reversal of 2117099827 is 7289907112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2117099827 is a prime.

It is a super-2 number, since 2×2117099827² = 8964223354966859858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2117099807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058549913 + 1058549914.

It is an arithmetic number, because the mean of its divisors is an integer number (1058549914).

Almost surely, 2^2117099827 is an apocalyptic number.

2117099827 is a deficient number, since it is larger than the sum of its proper divisors (1).

2117099827 is an equidigital number, since it uses as much as digits as its factorization.

2117099827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 46.

The square root of 2117099827 is about 46011.9530883009. The cubic root of 2117099827 is about 1284.0455957240.

The spelling of 2117099827 in words is "two billion, one hundred seventeen million, ninety-nine thousand, eight hundred twenty-seven".