863538893 has 8 divisors (see below), whose sum is σ = 1013574912. Its totient is φ = 720171216.

The previous prime is 863538877. The next prime is 863538983. The reversal of 863538893 is 398835368.

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 863538893 - 2⁴ = 863538877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863538803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666805 + ... + 1667322.

It is an arithmetic number, because the mean of its divisors is an integer number (126696864).

Almost surely, 2^863538893 is an apocalyptic number.

It is an amenable number.

863538893 is a deficient number, since it is larger than the sum of its proper divisors (150036019).

863538893 is a wasteful number, since it uses less digits than its factorization.

863538893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334171.

The product of its digits is 3732480, while the sum is 53.

The square root of 863538893 is about 29386.0322772572. The cubic root of 863538893 is about 952.2711654428.

The spelling of 863538893 in words is "eight hundred sixty-three million, five hundred thirty-eight thousand, eight hundred ninety-three".