531340887 has 48 divisors (see below), whose sum is σ = 903531776. Its totient is φ = 271814400.

The previous prime is 531340861. The next prime is 531340891. The reversal of 531340887 is 788043135.

It is not a de Polignac number, because 531340887 - 2⁷ = 531340759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531342887) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168687 + ... + 171807.

Almost surely, 2^531340887 is an apocalyptic number.

531340887 is a deficient number, since it is larger than the sum of its proper divisors (372190889).

531340887 is a wasteful number, since it uses less digits than its factorization.

531340887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220 (or 3209 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 531340887 is about 23050.8326747647. The cubic root of 531340887 is about 809.9491341325.

The spelling of 531340887 in words is "five hundred thirty-one million, three hundred forty thousand, eight hundred eighty-seven".