78326163 has 16 divisors (see below), whose sum is σ = 116188800. Its totient is φ = 52149960.

The previous prime is 78326159. The next prime is 78326179. The reversal of 78326163 is 36162387.

It is a happy number.

78326163 is a `hidden beast` number, since 7 + 8 + 32 + 616 + 3 = 666.

It is not a de Polignac number, because 78326163 - 2² = 78326159 is a prime.

It is a super-4 number, since 4×78326163⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78326663) 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 15 ways as a sum of consecutive naturals, for example, 28128 + ... + 30786.

It is an arithmetic number, because the mean of its divisors is an integer number (7261800).

Almost surely, 2^78326163 is an apocalyptic number.

78326163 is a deficient number, since it is larger than the sum of its proper divisors (37862637).

78326163 is a wasteful number, since it uses less digits than its factorization.

78326163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3759 (or 3753 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 78326163 is about 8850.2069467329. The cubic root of 78326163 is about 427.8605883472.

The spelling of 78326163 in words is "seventy-eight million, three hundred twenty-six thousand, one hundred sixty-three".