512830747 has 32 divisors (see below), whose sum is σ = 644184576. Its totient is φ = 401491200.

The previous prime is 512830723. The next prime is 512830807. The reversal of 512830747 is 747038215.

It is a de Polignac number, because none of the positive numbers 2^k-512830747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512830147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132948 + ... + 136750.

It is an arithmetic number, because the mean of its divisors is an integer number (20130768).

Almost surely, 2^512830747 is an apocalyptic number.

512830747 is a deficient number, since it is larger than the sum of its proper divisors (131353829).

512830747 is a wasteful number, since it uses less digits than its factorization.

512830747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3891.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 512830747 is about 22645.7666463293. The cubic root of 512830747 is about 800.4324469241.

The spelling of 512830747 in words is "five hundred twelve million, eight hundred thirty thousand, seven hundred forty-seven".