538666763 has 8 divisors (see below), whose sum is σ = 545664000. Its totient is φ = 531681768.

The previous prime is 538666759. The next prime is 538666769. The reversal of 538666763 is 367666835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 538666763 - 2² = 538666759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538666769) 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 7 ways as a sum of consecutive naturals, for example, 113798 + ... + 118436.

It is an arithmetic number, because the mean of its divisors is an integer number (68208000).

Almost surely, 2^538666763 is an apocalyptic number.

538666763 is a deficient number, since it is larger than the sum of its proper divisors (6997237).

538666763 is a wasteful number, since it uses less digits than its factorization.

538666763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6121.

The product of its digits is 3265920, while the sum is 50.

The square root of 538666763 is about 23209.1956560325. The cubic root of 538666763 is about 813.6545545255.

The spelling of 538666763 in words is "five hundred thirty-eight million, six hundred sixty-six thousand, seven hundred sixty-three".