499871949 has 8 divisors (see below), whose sum is σ = 695474112. Its totient is φ = 318758880.

The previous prime is 499871923. The next prime is 499871951. The reversal of 499871949 is 949178994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 499871949 - 2⁷ = 499871821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 499871892 and 499871901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499871849) 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 7 ways as a sum of consecutive naturals, for example, 3622192 + ... + 3622329.

It is an arithmetic number, because the mean of its divisors is an integer number (86934264).

Almost surely, 2^499871949 is an apocalyptic number.

It is an amenable number.

499871949 is a deficient number, since it is larger than the sum of its proper divisors (195602163).

499871949 is a wasteful number, since it uses less digits than its factorization.

499871949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7244547.

The product of its digits is 5878656, while the sum is 60.

The square root of 499871949 is about 22357.8162842439. The cubic root of 499871949 is about 793.6327641018.

The spelling of 499871949 in words is "four hundred ninety-nine million, eight hundred seventy-one thousand, nine hundred forty-nine".