505306867 has 8 divisors (see below), whose sum is σ = 546515424. Its totient is φ = 464432448.

The previous prime is 505306847. The next prime is 505306883. The reversal of 505306867 is 768603505.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505306867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505306807) 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, 80383 + ... + 86440.

It is an arithmetic number, because the mean of its divisors is an integer number (68314428).

Almost surely, 2^505306867 is an apocalyptic number.

505306867 is a deficient number, since it is larger than the sum of its proper divisors (41208557).

505306867 is a wasteful number, since it uses less digits than its factorization.

505306867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167069.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 505306867 is about 22479.0317184704. The cubic root of 505306867 is about 796.4986916346.

The spelling of 505306867 in words is "five hundred five million, three hundred six thousand, eight hundred sixty-seven".