505966939 has 8 divisors (see below), whose sum is σ = 518234112. Its totient is φ = 493722600.

The previous prime is 505966919. The next prime is 505966943. The reversal of 505966939 is 939669505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505966939 - 2¹⁵ = 505934171 is a prime.

It is a super-2 number, since 2×505966939² = 512005086722059442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505966919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44382 + ... + 54604.

It is an arithmetic number, because the mean of its divisors is an integer number (64779264).

Almost surely, 2^505966939 is an apocalyptic number.

505966939 is a deficient number, since it is larger than the sum of its proper divisors (12267173).

505966939 is a wasteful number, since it uses less digits than its factorization.

505966939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11417.

The product of its (nonzero) digits is 1968300, while the sum is 52.

The square root of 505966939 is about 22493.7088760391. The cubic root of 505966939 is about 796.8453573677.

The spelling of 505966939 in words is "five hundred five million, nine hundred sixty-six thousand, nine hundred thirty-nine".