503491634 has 8 divisors (see below), whose sum is σ = 775649388. Its totient is φ = 244941840.

The previous prime is 503491631. The next prime is 503491661. The reversal of 503491634 is 436194305.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 503329225 + 162409 = 22435^2 + 403^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 503491594 and 503491603.

It is not an unprimeable number, because it can be changed into a prime (503491631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3401897 + ... + 3402044.

Almost surely, 2^503491634 is an apocalyptic number.

503491634 is a deficient number, since it is larger than the sum of its proper divisors (272157754).

503491634 is a wasteful number, since it uses less digits than its factorization.

503491634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6803980.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 503491634 is about 22438.6192534211. The cubic root of 503491634 is about 795.5437831280.

The spelling of 503491634 in words is "five hundred three million, four hundred ninety-one thousand, six hundred thirty-four".