500609978 has 8 divisors (see below), whose sum is σ = 819180000. Its totient is φ = 227549980.

The previous prime is 500609971. The next prime is 500610013. The reversal of 500609978 is 879906005.

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

It is a super-2 number, since 2×500609978² = 501220700146320968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (500609971) 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 3 ways as a sum of consecutive naturals, for example, 11377478 + ... + 11377521.

It is an arithmetic number, because the mean of its divisors is an integer number (102397500).

Almost surely, 2^500609978 is an apocalyptic number.

500609978 is a deficient number, since it is larger than the sum of its proper divisors (318570022).

500609978 is a wasteful number, since it uses less digits than its factorization.

500609978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22755012.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 500609978 is about 22374.3151403568. The cubic root of 500609978 is about 794.0231547283.

The spelling of 500609978 in words is "five hundred million, six hundred nine thousand, nine hundred seventy-eight".