78859356 has 24 divisors (see below), whose sum is σ = 184815120. Its totient is φ = 26170752.

The previous prime is 78859343. The next prime is 78859357. The reversal of 78859356 is 65395887.

It is a junction number, because it is equal to n+sod(n) for n = 78859299 and 78859308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78859357) 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 7 ways as a sum of consecutive naturals, for example, 11601 + ... + 17096.

It is an arithmetic number, because the mean of its divisors is an integer number (7700630).

Almost surely, 2^78859356 is an apocalyptic number.

It is an amenable number.

78859356 is an abundant number, since it is smaller than the sum of its proper divisors (105955764).

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

78859356 is a wasteful number, since it uses less digits than its factorization.

78859356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28933 (or 28931 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 51.

The square root of 78859356 is about 8880.2790496696. The cubic root of 78859356 is about 428.8292581279.

The spelling of 78859356 in words is "seventy-eight million, eight hundred fifty-nine thousand, three hundred fifty-six".