499488949 has 4 divisors (see below), whose sum is σ = 499648864. Its totient is φ = 499329036.

The previous prime is 499488943. The next prime is 499488959. The reversal of 499488949 is 949884994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 949884994 = 2 ⋅474942497.

It is a cyclic number.

It is not a de Polignac number, because 499488949 - 2¹⁷ = 499357877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499488943) 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, 75177 + ... + 81550.

It is an arithmetic number, because the mean of its divisors is an integer number (124912216).

Almost surely, 2^499488949 is an apocalyptic number.

It is an amenable number.

499488949 is a deficient number, since it is larger than the sum of its proper divisors (159915).

499488949 is a wasteful number, since it uses less digits than its factorization.

499488949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159914.

The product of its digits is 26873856, while the sum is 64.

The square root of 499488949 is about 22349.2494057407. The cubic root of 499488949 is about 793.4300195031.

The spelling of 499488949 in words is "four hundred ninety-nine million, four hundred eighty-eight thousand, nine hundred forty-nine".