499647371 has 4 divisors (see below), whose sum is σ = 513151392. Its totient is φ = 486143352.

The previous prime is 499647347. The next prime is 499647383. The reversal of 499647371 is 173746994.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 173746994 = 2 ⋅86873497.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499647371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499640371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6751955 + ... + 6752028.

It is an arithmetic number, because the mean of its divisors is an integer number (128287848).

Almost surely, 2^499647371 is an apocalyptic number.

499647371 is a deficient number, since it is larger than the sum of its proper divisors (13504021).

499647371 is a wasteful number, since it uses less digits than its factorization.

499647371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13504020.

The product of its digits is 1143072, while the sum is 50.

The square root of 499647371 is about 22352.7933601150. The cubic root of 499647371 is about 793.5138942209.

The spelling of 499647371 in words is "four hundred ninety-nine million, six hundred forty-seven thousand, three hundred seventy-one".