531482687 has 4 divisors (see below), whose sum is σ = 559455480. Its totient is φ = 503509896.

The previous prime is 531482671. The next prime is 531482717. The reversal of 531482687 is 786284135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 531482687 - 2⁴ = 531482671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531482617) 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 3 ways as a sum of consecutive naturals, for example, 13986368 + ... + 13986405.

It is an arithmetic number, because the mean of its divisors is an integer number (139863870).

Almost surely, 2^531482687 is an apocalyptic number.

531482687 is a deficient number, since it is larger than the sum of its proper divisors (27972793).

531482687 is a wasteful number, since it uses less digits than its factorization.

531482687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27972792.

The product of its digits is 322560, while the sum is 44.

The square root of 531482687 is about 23053.9082803762. The cubic root of 531482687 is about 810.0211786364.

The spelling of 531482687 in words is "five hundred thirty-one million, four hundred eighty-two thousand, six hundred eighty-seven".