503856673 has 2 divisors, whose sum is σ = 503856674. Its totient is φ = 503856672.

The previous prime is 503856641. The next prime is 503856677. The reversal of 503856673 is 376658305.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 501222544 + 2634129 = 22388^2 + 1623^2 .

It is a cyclic number.

It is not a de Polignac number, because 503856673 - 2⁵ = 503856641 is a prime.

It is not a weakly prime, because it can be changed into another prime (503856677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251928336 + 251928337.

It is an arithmetic number, because the mean of its divisors is an integer number (251928337).

Almost surely, 2^503856673 is an apocalyptic number.

It is an amenable number.

503856673 is a deficient number, since it is larger than the sum of its proper divisors (1).

503856673 is an equidigital number, since it uses as much as digits as its factorization.

503856673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 503856673 is about 22446.7519476649. The cubic root of 503856673 is about 795.7359970817.

The spelling of 503856673 in words is "five hundred three million, eight hundred fifty-six thousand, six hundred seventy-three".