78965163 has 6 divisors (see below), whose sum is σ = 114060804. Its totient is φ = 52643436.

The previous prime is 78965147. The next prime is 78965167. The reversal of 78965163 is 36156987.

It is a happy number.

It is not a de Polignac number, because 78965163 - 2⁴ = 78965147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78965167) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4386945 + ... + 4386962.

It is an arithmetic number, because the mean of its divisors is an integer number (19010134).

Almost surely, 2^78965163 is an apocalyptic number.

78965163 is a deficient number, since it is larger than the sum of its proper divisors (35095641).

78965163 is a wasteful number, since it uses less digits than its factorization.

78965163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8773913 (or 8773910 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 78965163 is about 8886.2344668594. The cubic root of 78965163 is about 429.0209616960.

The spelling of 78965163 in words is "seventy-eight million, nine hundred sixty-five thousand, one hundred sixty-three".