508870666 has 4 divisors (see below), whose sum is σ = 763306002. Its totient is φ = 254435332.

The previous prime is 508870631. The next prime is 508870709. The reversal of 508870666 is 666078805.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 422919225 + 85951441 = 20565^2 + 9271^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127217665 + ... + 127217668.

Almost surely, 2^508870666 is an apocalyptic number.

508870666 is a deficient number, since it is larger than the sum of its proper divisors (254435336).

508870666 is a wasteful number, since it uses less digits than its factorization.

508870666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254435335.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 508870666 is about 22558.1618488741. The cubic root of 508870666 is about 798.3668066599.

The spelling of 508870666 in words is "five hundred eight million, eight hundred seventy thousand, six hundred sixty-six".