2340211997 has 2 divisors, whose sum is σ = 2340211998. Its totient is φ = 2340211996.

The previous prime is 2340211961. The next prime is 2340211999. The reversal of 2340211997 is 7991120432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2318037316 + 22174681 = 48146^2 + 4709^2 .

It is a cyclic number.

It is not a de Polignac number, because 2340211997 - 2⁶ = 2340211933 is a prime.

Together with 2340211999, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2340211997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2340211999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1170105998 + 1170105999.

It is an arithmetic number, because the mean of its divisors is an integer number (1170105999).

Almost surely, 2^2340211997 is an apocalyptic number.

It is an amenable number.

2340211997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2340211997 is an equidigital number, since it uses as much as digits as its factorization.

2340211997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 2340211997 is about 48375.7376894658. The cubic root of 2340211997 is about 1327.6544856820.

The spelling of 2340211997 in words is "two billion, three hundred forty million, two hundred eleven thousand, nine hundred ninety-seven".