505336643 has 8 divisors (see below), whose sum is σ = 583135488. Its totient is φ = 428939784.

The previous prime is 505336589. The next prime is 505336669. The reversal of 505336643 is 346633505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505336643 - 2¹² = 505332547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505336943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349721 + ... + 351162.

It is an arithmetic number, because the mean of its divisors is an integer number (72891936).

Almost surely, 2^505336643 is an apocalyptic number.

505336643 is a deficient number, since it is larger than the sum of its proper divisors (77798845).

505336643 is a wasteful number, since it uses less digits than its factorization.

505336643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700993.

The product of its (nonzero) digits is 97200, while the sum is 35.

The square root of 505336643 is about 22479.6940148215. The cubic root of 505336643 is about 796.5143363057.

The spelling of 505336643 in words is "five hundred five million, three hundred thirty-six thousand, six hundred forty-three".