78863163 has 8 divisors (see below), whose sum is σ = 108542976. Its totient is φ = 50879400.

The previous prime is 78863143. The next prime is 78863171. The reversal of 78863163 is 36136887.

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

It is not a de Polignac number, because 78863163 - 2¹⁰ = 78862139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78863143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423903 + ... + 424088.

It is an arithmetic number, because the mean of its divisors is an integer number (13567872).

Almost surely, 2^78863163 is an apocalyptic number.

78863163 is a deficient number, since it is larger than the sum of its proper divisors (29679813).

78863163 is a wasteful number, since it uses less digits than its factorization.

78863163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848025.

The product of its digits is 145152, while the sum is 42.

The square root of 78863163 is about 8880.4933984548. The cubic root of 78863163 is about 428.8361587114.

The spelling of 78863163 in words is "seventy-eight million, eight hundred sixty-three thousand, one hundred sixty-three".