78847626 has 48 divisors (see below), whose sum is σ = 186308640. Its totient is φ = 22052160.

The previous prime is 78847621. The next prime is 78847631. The reversal of 78847626 is 62674887.

It is an interprime number because it is at equal distance from previous prime (78847621) and next prime (78847631).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78847621) 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 23 ways as a sum of consecutive naturals, for example, 7620 + ... + 14688.

It is an arithmetic number, because the mean of its divisors is an integer number (3881430).

Almost surely, 2^78847626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78847626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93154320).

78847626 is an abundant number, since it is smaller than the sum of its proper divisors (107461014).

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

78847626 is a wasteful number, since it uses less digits than its factorization.

78847626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7111 (or 7098 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The square root of 78847626 is about 8879.6185728893. The cubic root of 78847626 is about 428.8079948863.

The spelling of 78847626 in words is "seventy-eight million, eight hundred forty-seven thousand, six hundred twenty-six".