2398206709 has 2 divisors, whose sum is σ = 2398206710. Its totient is φ = 2398206708.

The previous prime is 2398206691. The next prime is 2398206719. The reversal of 2398206709 is 9076028932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2221236900 + 176969809 = 47130^2 + 13303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2398206709 is a prime.

It is a super-2 number, since 2×2398206709² = 11502790838185221362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2398206719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1199103354 + 1199103355.

It is an arithmetic number, because the mean of its divisors is an integer number (1199103355).

Almost surely, 2^2398206709 is an apocalyptic number.

It is an amenable number.

2398206709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2398206709 is an equidigital number, since it uses as much as digits as its factorization.

2398206709 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 46.

The square root of 2398206709 is about 48971.4887357940. The cubic root of 2398206709 is about 1338.5323481610.

The spelling of 2398206709 in words is "two billion, three hundred ninety-eight million, two hundred six thousand, seven hundred nine".