531620870 has 32 divisors (see below), whose sum is σ = 1047080736. Its totient is φ = 192729600.

The previous prime is 531620849. The next prime is 531620879. The reversal of 531620870 is 78026135.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531620879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29900 + ... + 44240.

It is an arithmetic number, because the mean of its divisors is an integer number (32721273).

Almost surely, 2^531620870 is an apocalyptic number.

531620870 is a deficient number, since it is larger than the sum of its proper divisors (515459866).

531620870 is a wasteful number, since it uses less digits than its factorization.

531620870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14696.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 531620870 is about 23056.9050394887. The cubic root of 531620870 is about 810.0913731195.

The spelling of 531620870 in words is "five hundred thirty-one million, six hundred twenty thousand, eight hundred seventy".