78832847 has 2 divisors, whose sum is σ = 78832848. Its totient is φ = 78832846.

The previous prime is 78832841. The next prime is 78832849. The reversal of 78832847 is 74823887.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (74823887) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78832847 is a prime.

It is a super-2 number, since 2×78832847² = 12429235532250818, which contains 22 as substring.

Together with 78832849, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 78832847 parts by 12556 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78832841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39416423 + 39416424.

It is an arithmetic number, because the mean of its divisors is an integer number (39416424).

Almost surely, 2^78832847 is an apocalyptic number.

78832847 is a deficient number, since it is larger than the sum of its proper divisors (1).

78832847 is an equidigital number, since it uses as much as digits as its factorization.

78832847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 602112, while the sum is 47.

The square root of 78832847 is about 8878.7863472436. The cubic root of 78832847 is about 428.7812016494.

The spelling of 78832847 in words is "seventy-eight million, eight hundred thirty-two thousand, eight hundred forty-seven".