78832205 has 4 divisors (see below), whose sum is σ = 94598652. Its totient is φ = 63065760.

The previous prime is 78832181. The next prime is 78832211. The reversal of 78832205 is 50223887.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50223887 = 7 ⋅7174841.

It can be written as a sum of positive squares in 2 ways, for example, as 43059844 + 35772361 = 6562^2 + 5981^2 .

It is not a de Polignac number, because 78832205 - 2¹² = 78828109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7883216 + ... + 7883225.

It is an arithmetic number, because the mean of its divisors is an integer number (23649663).

Almost surely, 2^78832205 is an apocalyptic number.

It is an amenable number.

78832205 is a deficient number, since it is larger than the sum of its proper divisors (15766447).

78832205 is a wasteful number, since it uses less digits than its factorization.

78832205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15766446.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 78832205 is about 8878.7501935802. The cubic root of 78832205 is about 428.7800376749.

The spelling of 78832205 in words is "seventy-eight million, eight hundred thirty-two thousand, two hundred five".