511930979 has 12 divisors (see below), whose sum is σ = 630542664. Its totient is φ = 412985664.

The previous prime is 511930973. The next prime is 511931009. The reversal of 511930979 is 979039115.

It is not a de Polignac number, because 511930979 - 2⁴ = 511930963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511930973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 306449 + ... + 308114.

It is an arithmetic number, because the mean of its divisors is an integer number (52545222).

Almost surely, 2^511930979 is an apocalyptic number.

511930979 is a deficient number, since it is larger than the sum of its proper divisors (118611685).

511930979 is a wasteful number, since it uses less digits than its factorization.

511930979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614594 (or 614587 counting only the distinct ones).

The product of its (nonzero) digits is 76545, while the sum is 44.

The square root of 511930979 is about 22625.8917835298. The cubic root of 511930979 is about 799.9640499470.

The spelling of 511930979 in words is "five hundred eleven million, nine hundred thirty thousand, nine hundred seventy-nine".