538784667 has 12 divisors (see below), whose sum is σ = 781057680. Its totient is φ = 357891408.

The previous prime is 538784647. The next prime is 538784669. The reversal of 538784667 is 766487835.

538784667 is a `hidden beast` number, since 538 + 7 + 8 + 46 + 67 = 666.

It is not a de Polignac number, because 538784667 - 2¹⁴ = 538768283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (538784669) 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, 105567 + ... + 110552.

It is an arithmetic number, because the mean of its divisors is an integer number (65088140).

Almost surely, 2^538784667 is an apocalyptic number.

538784667 is a deficient number, since it is larger than the sum of its proper divisors (242273013).

538784667 is a wasteful number, since it uses less digits than its factorization.

538784667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216402 (or 216399 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The square root of 538784667 is about 23211.7355447627. The cubic root of 538784667 is about 813.7139147427.

The spelling of 538784667 in words is "five hundred thirty-eight million, seven hundred eighty-four thousand, six hundred sixty-seven".