500016890 has 16 divisors (see below), whose sum is σ = 924356232. Its totient is φ = 194601024.

The previous prime is 500016877. The next prime is 500016911. The reversal of 500016890 is 98610005.

It can be written as a sum of positive squares in 4 ways, for example, as 495552121 + 4464769 = 22261^2 + 2113^2 .

It is a Curzon number.

It is an unprimeable number.

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, 675329 + ... + 676068.

Almost surely, 2^500016890 is an apocalyptic number.

500016890 is a deficient number, since it is larger than the sum of its proper divisors (424339342).

500016890 is a wasteful number, since it uses less digits than its factorization.

500016890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351441.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 500016890 is about 22361.0574436899. The cubic root of 500016890 is about 793.7094629514.

Adding to 500016890 its reverse (98610005), we get a palindrome (598626895).

The spelling of 500016890 in words is "five hundred million, sixteen thousand, eight hundred ninety".