498505897 has 2 divisors, whose sum is σ = 498505898. Its totient is φ = 498505896.

The previous prime is 498505859. The next prime is 498505919. The reversal of 498505897 is 798505894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 303317056 + 195188841 = 17416^2 + 13971^2 .

It is a cyclic number.

It is not a de Polignac number, because 498505897 - 2⁷ = 498505769 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (498505817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249252948 + 249252949.

It is an arithmetic number, because the mean of its divisors is an integer number (249252949).

Almost surely, 2^498505897 is an apocalyptic number.

It is an amenable number.

498505897 is a deficient number, since it is larger than the sum of its proper divisors (1).

498505897 is an equidigital number, since it uses as much as digits as its factorization.

498505897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The square root of 498505897 is about 22327.2456205417. The cubic root of 498505897 is about 792.9091569774.

The spelling of 498505897 in words is "four hundred ninety-eight million, five hundred five thousand, eight hundred ninety-seven".