500978971 has 4 divisors (see below), whose sum is σ = 509470200. Its totient is φ = 492487744.

The previous prime is 500978963. The next prime is 500978983. The reversal of 500978971 is 179879005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179879005 = 5 ⋅35975801.

It is a cyclic number.

It is not a de Polignac number, because 500978971 - 2³ = 500978963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500978371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4245526 + ... + 4245643.

It is an arithmetic number, because the mean of its divisors is an integer number (127367550).

Almost surely, 2^500978971 is an apocalyptic number.

500978971 is a deficient number, since it is larger than the sum of its proper divisors (8491229).

500978971 is an equidigital number, since it uses as much as digits as its factorization.

500978971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8491228.

The product of its (nonzero) digits is 158760, while the sum is 46.

The square root of 500978971 is about 22382.5595274535. The cubic root of 500978971 is about 794.2181948075.

The spelling of 500978971 in words is "five hundred million, nine hundred seventy-eight thousand, nine hundred seventy-one".