499909497 has 16 divisors (see below), whose sum is σ = 706288320. Its totient is φ = 313431552.

The previous prime is 499909489. The next prime is 499909517. The reversal of 499909497 is 794909994.

It is not a de Polignac number, because 499909497 - 2³ = 499909489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 499909497.

It is not an unprimeable number, because it can be changed into a prime (499909447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85029 + ... + 90717.

It is an arithmetic number, because the mean of its divisors is an integer number (44143020).

Almost surely, 2^499909497 is an apocalyptic number.

It is an amenable number.

499909497 is a deficient number, since it is larger than the sum of its proper divisors (206378823).

499909497 is a wasteful number, since it uses less digits than its factorization.

499909497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7432.

The product of its (nonzero) digits is 6613488, while the sum is 60.

The square root of 499909497 is about 22358.6559748121. The cubic root of 499909497 is about 793.6526349087.

The spelling of 499909497 in words is "four hundred ninety-nine million, nine hundred nine thousand, four hundred ninety-seven".