498340399 has 2 divisors, whose sum is σ = 498340400. Its totient is φ = 498340398.

The previous prime is 498340369. The next prime is 498340421. The reversal of 498340399 is 993043894.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 498340399 - 2¹³ = 498332207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498340369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249170199 + 249170200.

It is an arithmetic number, because the mean of its divisors is an integer number (249170200).

Almost surely, 2^498340399 is an apocalyptic number.

498340399 is a deficient number, since it is larger than the sum of its proper divisors (1).

498340399 is an equidigital number, since it uses as much as digits as its factorization.

498340399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 49.

The square root of 498340399 is about 22323.5391235350. The cubic root of 498340399 is about 792.8214018108.

The spelling of 498340399 in words is "four hundred ninety-eight million, three hundred forty thousand, three hundred ninety-nine".