2097126839 has 2 divisors, whose sum is σ = 2097126840. Its totient is φ = 2097126838.

The previous prime is 2097126809. The next prime is 2097126883. The reversal of 2097126839 is 9386217902.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2097126839 - 2¹² = 2097122743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2097126793 and 2097126802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2097126809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1048563419 + 1048563420.

It is an arithmetic number, because the mean of its divisors is an integer number (1048563420).

Almost surely, 2^2097126839 is an apocalyptic number.

2097126839 is a deficient number, since it is larger than the sum of its proper divisors (1).

2097126839 is an equidigital number, since it uses as much as digits as its factorization.

2097126839 is an evil number, because the sum of its binary digits is even.

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

The square root of 2097126839 is about 45794.3974630085. The cubic root of 2097126839 is about 1279.9948809610.

The spelling of 2097126839 in words is "two billion, ninety-seven million, one hundred twenty-six thousand, eight hundred thirty-nine".