499584649 has 4 divisors (see below), whose sum is σ = 499629636. Its totient is φ = 499539664.

The previous prime is 499584643. The next prime is 499584677. The reversal of 499584649 is 946485994.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 385415424 + 114169225 = 19632^2 + 10685^2 .

It is a cyclic number.

It is not a de Polignac number, because 499584649 - 2⁷ = 499584521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 499584593 and 499584602.

It is not an unprimeable number, because it can be changed into a prime (499584643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7467 + ... + 32479.

It is an arithmetic number, because the mean of its divisors is an integer number (124907409).

Almost surely, 2^499584649 is an apocalyptic number.

It is an amenable number.

499584649 is a deficient number, since it is larger than the sum of its proper divisors (44987).

499584649 is a wasteful number, since it uses less digits than its factorization.

499584649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44986.

The product of its digits is 11197440, while the sum is 58.

The square root of 499584649 is about 22351.3903146985. The cubic root of 499584649 is about 793.4806888950.

The spelling of 499584649 in words is "four hundred ninety-nine million, five hundred eighty-four thousand, six hundred forty-nine".