78836364 has 36 divisors (see below), whose sum is σ = 207947376. Its totient is φ = 25135968.

The previous prime is 78836363. The next prime is 78836383. The reversal of 78836364 is 46363887.

78836364 is a `hidden beast` number, since 7 + 8 + 8 + 3 + 636 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (78836363) 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 11 ways as a sum of consecutive naturals, for example, 46779 + ... + 48434.

It is an arithmetic number, because the mean of its divisors is an integer number (5776316).

Almost surely, 2^78836364 is an apocalyptic number.

It is an amenable number.

78836364 is an abundant number, since it is smaller than the sum of its proper divisors (129111012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78836364 is a wasteful number, since it uses less digits than its factorization.

78836364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95246 (or 95241 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 78836364 is about 8878.9844013829. The cubic root of 78836364 is about 428.7875780146.

The spelling of 78836364 in words is "seventy-eight million, eight hundred thirty-six thousand, three hundred sixty-four".