523271487 has 4 divisors (see below), whose sum is σ = 697695320. Its totient is φ = 348847656.

The previous prime is 523271453. The next prime is 523271503. The reversal of 523271487 is 784172325.

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

It is not a de Polignac number, because 523271487 - 2¹⁰ = 523270463 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 (523271417) 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, 87211912 + ... + 87211917.

It is an arithmetic number, because the mean of its divisors is an integer number (174423830).

Almost surely, 2^523271487 is an apocalyptic number.

523271487 is a deficient number, since it is larger than the sum of its proper divisors (174423833).

523271487 is a wasteful number, since it uses less digits than its factorization.

523271487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174423832.

The product of its digits is 94080, while the sum is 39.

The square root of 523271487 is about 22875.1281307887. The cubic root of 523271487 is about 805.8280059787.

The spelling of 523271487 in words is "five hundred twenty-three million, two hundred seventy-one thousand, four hundred eighty-seven".