509883939 has 24 divisors (see below), whose sum is σ = 780820352. Its totient is φ = 320060160.

The previous prime is 509883917. The next prime is 509883961. The reversal of 509883939 is 939388905.

It is an interprime number because it is at equal distance from previous prime (509883917) and next prime (509883961).

It is not a de Polignac number, because 509883939 - 2⁹ = 509883427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (509883239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14374 + ... + 35019.

Almost surely, 2^509883939 is an apocalyptic number.

509883939 is a deficient number, since it is larger than the sum of its proper divisors (270936413).

509883939 is a wasteful number, since it uses less digits than its factorization.

509883939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49467 (or 49464 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The square root of 509883939 is about 22580.6098013318. The cubic root of 509883939 is about 798.8963630779.

The spelling of 509883939 in words is "five hundred nine million, eight hundred eighty-three thousand, nine hundred thirty-nine".