499561887 has 8 divisors (see below), whose sum is σ = 726635520. Its totient is φ = 302764760.

The previous prime is 499561871. The next prime is 499561891. The reversal of 499561887 is 788165994.

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

It is a cyclic number.

It is not a de Polignac number, because 499561887 - 2⁴ = 499561871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499561787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7569087 + ... + 7569152.

It is an arithmetic number, because the mean of its divisors is an integer number (90829440).

Almost surely, 2^499561887 is an apocalyptic number.

499561887 is a deficient number, since it is larger than the sum of its proper divisors (227073633).

499561887 is a wasteful number, since it uses less digits than its factorization.

499561887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15138253.

The product of its digits is 4354560, while the sum is 57.

The square root of 499561887 is about 22350.8811235709. The cubic root of 499561887 is about 793.4686378964.

The spelling of 499561887 in words is "four hundred ninety-nine million, five hundred sixty-one thousand, eight hundred eighty-seven".