506678986 has 16 divisors (see below), whose sum is σ = 830360160. Its totient is φ = 229961680.

The previous prime is 506678971. The next prime is 506678987. The reversal of 506678986 is 689876605.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (506678987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2116 + ... + 31903.

It is an arithmetic number, because the mean of its divisors is an integer number (51897510).

Almost surely, 2^506678986 is an apocalyptic number.

506678986 is a deficient number, since it is larger than the sum of its proper divisors (323681174).

506678986 is a wasteful number, since it uses less digits than its factorization.

506678986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34709.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The square root of 506678986 is about 22509.5310035549. The cubic root of 506678986 is about 797.2189821688.

The spelling of 506678986 in words is "five hundred six million, six hundred seventy-eight thousand, nine hundred eighty-six".