2097986939 has 2 divisors, whose sum is σ = 2097986940. Its totient is φ = 2097986938.

The previous prime is 2097986923. The next prime is 2097986941. The reversal of 2097986939 is 9396897902.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2097986939 - 2⁴ = 2097986923 is a prime.

It is a Sophie Germain prime.

Together with 2097986941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2097986999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1048993469 + 1048993470.

It is an arithmetic number, because the mean of its divisors is an integer number (1048993470).

Almost surely, 2^2097986939 is an apocalyptic number.

2097986939 is a deficient number, since it is larger than the sum of its proper divisors (1).

2097986939 is an equidigital number, since it uses as much as digits as its factorization.

2097986939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13226976, while the sum is 62.

The square root of 2097986939 is about 45803.7873870710. The cubic root of 2097986939 is about 1280.1698462361.

The spelling of 2097986939 in words is "two billion, ninety-seven million, nine hundred eighty-six thousand, nine hundred thirty-nine".