538461487 has 16 divisors (see below), whose sum is σ = 579402432. Its totient is φ = 499150080.

The previous prime is 538461467. The next prime is 538461499. The reversal of 538461487 is 784164835.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 538461487 - 2¹⁹ = 537937199 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 (538461467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146233 + ... + 149869.

It is an arithmetic number, because the mean of its divisors is an integer number (36212652).

Almost surely, 2^538461487 is an apocalyptic number.

538461487 is a deficient number, since it is larger than the sum of its proper divisors (40940945).

538461487 is a wasteful number, since it uses less digits than its factorization.

538461487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3858.

The product of its digits is 645120, while the sum is 46.

The square root of 538461487 is about 23204.7729357561. The cubic root of 538461487 is about 813.5511851297.

The spelling of 538461487 in words is "five hundred thirty-eight million, four hundred sixty-one thousand, four hundred eighty-seven".