503977493 has 2 divisors, whose sum is σ = 503977494. Its totient is φ = 503977492.

The previous prime is 503977471. The next prime is 503977511. The reversal of 503977493 is 394779305.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 476025124 + 27952369 = 21818^2 + 5287^2 .

It is a cyclic number.

It is not a de Polignac number, because 503977493 - 2⁸ = 503977237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503977423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251988746 + 251988747.

It is an arithmetic number, because the mean of its divisors is an integer number (251988747).

Almost surely, 2^503977493 is an apocalyptic number.

It is an amenable number.

503977493 is a deficient number, since it is larger than the sum of its proper divisors (1).

503977493 is an equidigital number, since it uses as much as digits as its factorization.

503977493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 714420, while the sum is 47.

The square root of 503977493 is about 22449.4430443163. The cubic root of 503977493 is about 795.7995952865.

The spelling of 503977493 in words is "five hundred three million, nine hundred seventy-seven thousand, four hundred ninety-three".