498431399 has 2 divisors, whose sum is σ = 498431400. Its totient is φ = 498431398.

The previous prime is 498431377. The next prime is 498431419. The reversal of 498431399 is 993134894.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-498431399 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498431369) 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, 249215699 + 249215700.

It is an arithmetic number, because the mean of its divisors is an integer number (249215700).

Almost surely, 2^498431399 is an apocalyptic number.

498431399 is a deficient number, since it is larger than the sum of its proper divisors (1).

498431399 is an equidigital number, since it uses as much as digits as its factorization.

498431399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 50.

The square root of 498431399 is about 22325.5772377782. The cubic root of 498431399 is about 792.8696568835.

The spelling of 498431399 in words is "four hundred ninety-eight million, four hundred thirty-one thousand, three hundred ninety-nine".