500943977 has 4 divisors (see below), whose sum is σ = 507285120. Its totient is φ = 494602836.

The previous prime is 500943943. The next prime is 500943983. The reversal of 500943977 is 779349005.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 779349005 = 5 ⋅155869801.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500943977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500943917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3170453 + ... + 3170610.

It is an arithmetic number, because the mean of its divisors is an integer number (126821280).

Almost surely, 2^500943977 is an apocalyptic number.

It is an amenable number.

500943977 is a deficient number, since it is larger than the sum of its proper divisors (6341143).

500943977 is an equidigital number, since it uses as much as digits as its factorization.

500943977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6341142.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 500943977 is about 22381.7777890855. Note that the first 4 decimals coincide. The cubic root of 500943977 is about 794.1997020029.

The spelling of 500943977 in words is "five hundred million, nine hundred forty-three thousand, nine hundred seventy-seven".