499980969 has 24 divisors (see below), whose sum is σ = 755701440. Its totient is φ = 317937312.

The previous prime is 499980919. The next prime is 499980977. The reversal of 499980969 is 969089994.

499980969 is a `hidden beast` number, since 499 + 9 + 80 + 9 + 69 = 666.

It is not a de Polignac number, because 499980969 - 2⁷ = 499980841 is a prime.

It is a super-2 number, since 2×499980969² = 499961938724357922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (499980919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75267 + ... + 81639.

It is an arithmetic number, because the mean of its divisors is an integer number (31487560).

Almost surely, 2^499980969 is an apocalyptic number.

It is an amenable number.

499980969 is a deficient number, since it is larger than the sum of its proper divisors (255720471).

499980969 is a wasteful number, since it uses less digits than its factorization.

499980969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6781 (or 6778 counting only the distinct ones).

The product of its (nonzero) digits is 11337408, while the sum is 63.

The square root of 499980969 is about 22360.2542248517. The cubic root of 499980969 is about 793.6904559132.

The spelling of 499980969 in words is "four hundred ninety-nine million, nine hundred eighty thousand, nine hundred sixty-nine".