498997969 has 4 divisors (see below), whose sum is σ = 525261040. Its totient is φ = 472734900.

The previous prime is 498997927. The next prime is 498997981. The reversal of 498997969 is 969799894.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-498997969 is a prime.

It is a super-2 number, since 2×498997969² = 497997946132249922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 498997898 and 498997907.

It is not an unprimeable number, because it can be changed into a prime (498995969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13131507 + ... + 13131544.

It is an arithmetic number, because the mean of its divisors is an integer number (131315260).

Almost surely, 2^498997969 is an apocalyptic number.

It is an amenable number.

498997969 is a deficient number, since it is larger than the sum of its proper divisors (26263071).

498997969 is a wasteful number, since it uses less digits than its factorization.

498997969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26263070.

The product of its digits is 79361856, while the sum is 70.

The square root of 498997969 is about 22338.2624436190. The cubic root of 498997969 is about 793.1699630446.

The spelling of 498997969 in words is "four hundred ninety-eight million, nine hundred ninety-seven thousand, nine hundred sixty-nine".