499785291 has 12 divisors (see below), whose sum is σ = 759907720. Its totient is φ = 315653760.

The previous prime is 499785287. The next prime is 499785323. The reversal of 499785291 is 192587994.

499785291 is a `hidden beast` number, since 49 + 9 + 78 + 529 + 1 = 666.

It is not a de Polignac number, because 499785291 - 2² = 499785287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499785241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1461190 + ... + 1461531.

Almost surely, 2^499785291 is an apocalyptic number.

499785291 is a deficient number, since it is larger than the sum of its proper divisors (260122429).

499785291 is a wasteful number, since it uses less digits than its factorization.

499785291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922746 (or 2922743 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The square root of 499785291 is about 22355.8782202802. The cubic root of 499785291 is about 793.5868999540.

The spelling of 499785291 in words is "four hundred ninety-nine million, seven hundred eighty-five thousand, two hundred ninety-one".