498336989 has 2 divisors, whose sum is σ = 498336990. Its totient is φ = 498336988.

The previous prime is 498336973. The next prime is 498337009. The reversal of 498336989 is 989633894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 384552100 + 113784889 = 19610^2 + 10667^2 .

It is a cyclic number.

It is not a de Polignac number, because 498336989 - 2⁴ = 498336973 is a prime.

It is a super-2 number, since 2×498336989² = 496679509211172242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498336689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249168494 + 249168495.

It is an arithmetic number, because the mean of its divisors is an integer number (249168495).

Almost surely, 2^498336989 is an apocalyptic number.

It is an amenable number.

498336989 is a deficient number, since it is larger than the sum of its proper divisors (1).

498336989 is an equidigital number, since it uses as much as digits as its factorization.

498336989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10077696, while the sum is 59.

The square root of 498336989 is about 22323.4627466260. The cubic root of 498336989 is about 792.8195934571.

The spelling of 498336989 in words is "four hundred ninety-eight million, three hundred thirty-six thousand, nine hundred eighty-nine".