863223139 has 4 divisors (see below), whose sum is σ = 877374400. Its totient is φ = 849071880.

The previous prime is 863223131. The next prime is 863223169. The reversal of 863223139 is 931322368.

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 863223139 - 2³ = 863223131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 863223098 and 863223107.

It is not an unprimeable number, because it can be changed into a prime (863223131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7075539 + ... + 7075660.

It is an arithmetic number, because the mean of its divisors is an integer number (219343600).

Almost surely, 2^863223139 is an apocalyptic number.

863223139 is a deficient number, since it is larger than the sum of its proper divisors (14151261).

863223139 is a wasteful number, since it uses less digits than its factorization.

863223139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14151260.

The product of its digits is 46656, while the sum is 37.

The square root of 863223139 is about 29380.6592676203. The cubic root of 863223139 is about 952.1550849405.

The spelling of 863223139 in words is "eight hundred sixty-three million, two hundred twenty-three thousand, one hundred thirty-nine".