501947834 has 16 divisors (see below), whose sum is σ = 786040200. Its totient is φ = 240093504.

The previous prime is 501947821. The next prime is 501947839. The reversal of 501947834 is 438749105.

It can be written as a sum of positive squares in 4 ways, for example, as 414244609 + 87703225 = 20353^2 + 9365^2 .

It is a junction number, because it is equal to n+sod(n) for n = 501947791 and 501947800.

It is not an unprimeable number, because it can be changed into a prime (501947839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33377 + ... + 46020.

Almost surely, 2^501947834 is an apocalyptic number.

501947834 is a deficient number, since it is larger than the sum of its proper divisors (284092366).

501947834 is a wasteful number, since it uses less digits than its factorization.

501947834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79537.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 501947834 is about 22404.1923309009. The cubic root of 501947834 is about 794.7298550777.

The spelling of 501947834 in words is "five hundred one million, nine hundred forty-seven thousand, eight hundred thirty-four".