507643919 has 16 divisors (see below), whose sum is σ = 579610080. Its totient is φ = 441584640.

The previous prime is 507643901. The next prime is 507643921. The reversal of 507643919 is 919346705.

It is a cyclic number.

It is not a de Polignac number, because 507643919 - 2¹² = 507639823 is a prime.

It is a super-2 number, since 2×507643919² = 515404696995357122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 507643919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507643949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5924 + ... + 32409.

It is an arithmetic number, because the mean of its divisors is an integer number (36225630).

Almost surely, 2^507643919 is an apocalyptic number.

507643919 is a deficient number, since it is larger than the sum of its proper divisors (71966161).

507643919 is a wasteful number, since it uses less digits than its factorization.

507643919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38410.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 507643919 is about 22530.9546846111. The cubic root of 507643919 is about 797.7247429539.

The spelling of 507643919 in words is "five hundred seven million, six hundred forty-three thousand, nine hundred nineteen".