531085867 has 8 divisors (see below), whose sum is σ = 572129600. Its totient is φ = 490069440.

The previous prime is 531085837. The next prime is 531085871. The reversal of 531085867 is 768580135.

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-531085867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531085817) 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, 53134 + ... + 62332.

It is an arithmetic number, because the mean of its divisors is an integer number (71516200).

Almost surely, 2^531085867 is an apocalyptic number.

531085867 is a deficient number, since it is larger than the sum of its proper divisors (41043733).

531085867 is a wasteful number, since it uses less digits than its factorization.

531085867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13653.

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 531085867 is about 23045.3003234933. The cubic root of 531085867 is about 809.8195335392.

The spelling of 531085867 in words is "five hundred thirty-one million, eighty-five thousand, eight hundred sixty-seven".