538984969 has 2 divisors, whose sum is σ = 538984970. Its totient is φ = 538984968.

The previous prime is 538984909. The next prime is 538984997. The reversal of 538984969 is 969489835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 533055744 + 5929225 = 23088^2 + 2435^2 .

It is a cyclic number.

It is not a de Polignac number, because 538984969 - 2⁷ = 538984841 is a prime.

It is a super-2 number, since 2×538984969² = 581009593615861922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (538984909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269492484 + 269492485.

It is an arithmetic number, because the mean of its divisors is an integer number (269492485).

Almost surely, 2^538984969 is an apocalyptic number.

It is an amenable number.

538984969 is a deficient number, since it is larger than the sum of its proper divisors (1).

538984969 is an equidigital number, since it uses as much as digits as its factorization.

538984969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16796160, while the sum is 61.

The square root of 538984969 is about 23216.0498147295. The cubic root of 538984969 is about 813.8147393954.

The spelling of 538984969 in words is "five hundred thirty-eight million, nine hundred eighty-four thousand, nine hundred sixty-nine".