501973393 has 2 divisors, whose sum is σ = 501973394. Its totient is φ = 501973392.

The previous prime is 501973391. The next prime is 501973397. The reversal of 501973393 is 393379105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 456976129 + 44997264 = 21377^2 + 6708^2 .

It is a cyclic number.

It is not a de Polignac number, because 501973393 - 2¹ = 501973391 is a prime.

Together with 501973391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (501973391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250986696 + 250986697.

It is an arithmetic number, because the mean of its divisors is an integer number (250986697).

Almost surely, 2^501973393 is an apocalyptic number.

It is an amenable number.

501973393 is a deficient number, since it is larger than the sum of its proper divisors (1).

501973393 is an equidigital number, since it uses as much as digits as its factorization.

501973393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76545, while the sum is 40.

The square root of 501973393 is about 22404.7627302768. The cubic root of 501973393 is about 794.7433439666.

The spelling of 501973393 in words is "five hundred one million, nine hundred seventy-three thousand, three hundred ninety-three".