504123871 has 2 divisors, whose sum is σ = 504123872. Its totient is φ = 504123870.

The previous prime is 504123799. The next prime is 504123877. The reversal of 504123871 is 178321405.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 504123871 - 2⁷ = 504123743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504123877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252061935 + 252061936.

It is an arithmetic number, because the mean of its divisors is an integer number (252061936).

Almost surely, 2^504123871 is an apocalyptic number.

504123871 is a deficient number, since it is larger than the sum of its proper divisors (1).

504123871 is an equidigital number, since it uses as much as digits as its factorization.

504123871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 504123871 is about 22452.7029775927. The cubic root of 504123871 is about 795.8766333016.

The spelling of 504123871 in words is "five hundred four million, one hundred twenty-three thousand, eight hundred seventy-one".