538437663 has 12 divisors (see below), whose sum is σ = 780638040. Its totient is φ = 357622416.

The previous prime is 538437643. The next prime is 538437689. The reversal of 538437663 is 366734835.

538437663 is a `hidden beast` number, since 538 + 43 + 76 + 6 + 3 = 666.

It is not a de Polignac number, because 538437663 - 2⁵ = 538437631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538437643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108781 + ... + 113622.

It is an arithmetic number, because the mean of its divisors is an integer number (65053170).

Almost surely, 2^538437663 is an apocalyptic number.

538437663 is a deficient number, since it is larger than the sum of its proper divisors (242200377).

538437663 is a wasteful number, since it uses less digits than its factorization.

538437663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222678 (or 222675 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The square root of 538437663 is about 23204.2595874120. The cubic root of 538437663 is about 813.5391865438.

The spelling of 538437663 in words is "five hundred thirty-eight million, four hundred thirty-seven thousand, six hundred sixty-three".