503664634 has 16 divisors (see below), whose sum is σ = 852599520. Its totient is φ = 221043760.

The previous prime is 503664631. The next prime is 503664641. The reversal of 503664634 is 436466305.

It is a junction number, because it is equal to n+sod(n) for n = 503664593 and 503664602.

It is not an unprimeable number, because it can be changed into a prime (503664631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394084 + ... + 395359.

It is an arithmetic number, because the mean of its divisors is an integer number (53287470).

Almost surely, 2^503664634 is an apocalyptic number.

503664634 is a deficient number, since it is larger than the sum of its proper divisors (348934886).

503664634 is a wasteful number, since it uses less digits than its factorization.

503664634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789485.

The product of its (nonzero) digits is 155520, while the sum is 37.

The square root of 503664634 is about 22442.4738832420. The cubic root of 503664634 is about 795.6348891200.

The spelling of 503664634 in words is "five hundred three million, six hundred sixty-four thousand, six hundred thirty-four".