538664099 has 4 divisors (see below), whose sum is σ = 547494720. Its totient is φ = 529833480.

The previous prime is 538664089. The next prime is 538664101. The reversal of 538664099 is 990466835.

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

It is a cyclic number.

It is not a de Polignac number, because 538664099 - 2⁴ = 538664083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538664089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4415219 + ... + 4415340.

It is an arithmetic number, because the mean of its divisors is an integer number (136873680).

Almost surely, 2^538664099 is an apocalyptic number.

538664099 is a deficient number, since it is larger than the sum of its proper divisors (8830621).

538664099 is an equidigital number, since it uses as much as digits as its factorization.

538664099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8830620.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 538664099 is about 23209.1382649163. The cubic root of 538664099 is about 813.6532132019.

The spelling of 538664099 in words is "five hundred thirty-eight million, six hundred sixty-four thousand, ninety-nine".