8400498839 has 2 divisors, whose sum is σ = 8400498840. Its totient is φ = 8400498838.

The previous prime is 8400498811. The next prime is 8400498913. The reversal of 8400498839 is 9388940048.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8400498839 - 2¹² = 8400494743 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8400498809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4200249419 + 4200249420.

It is an arithmetic number, because the mean of its divisors is an integer number (4200249420).

Almost surely, 2^8400498839 is an apocalyptic number.

8400498839 is a deficient number, since it is larger than the sum of its proper divisors (1).

8400498839 is an equidigital number, since it uses as much as digits as its factorization.

8400498839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 53.

The square root of 8400498839 is about 91654.2352485688. The cubic root of 8400498839 is about 2032.8329523683.

The spelling of 8400498839 in words is "eight billion, four hundred million, four hundred ninety-eight thousand, eight hundred thirty-nine".