2117389349 has 2 divisors, whose sum is σ = 2117389350. Its totient is φ = 2117389348.

The previous prime is 2117389301. The next prime is 2117389357. The reversal of 2117389349 is 9439837112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2114344324 + 3045025 = 45982^2 + 1745^2 .

It is a cyclic number.

It is not a de Polignac number, because 2117389349 - 2¹² = 2117385253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2117389369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058694674 + 1058694675.

It is an arithmetic number, because the mean of its divisors is an integer number (1058694675).

Almost surely, 2^2117389349 is an apocalyptic number.

It is an amenable number.

2117389349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2117389349 is an equidigital number, since it uses as much as digits as its factorization.

2117389349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 2117389349 is about 46015.0991414775. The cubic root of 2117389349 is about 1284.1041258728.

The spelling of 2117389349 in words is "two billion, one hundred seventeen million, three hundred eighty-nine thousand, three hundred forty-nine".