78839348 has 12 divisors (see below), whose sum is σ = 157678752. Its totient is φ = 33788280.

The previous prime is 78839347. The next prime is 78839357. The reversal of 78839348 is 84393887.

It is a happy number.

78839348 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 78839296 and 78839305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78839347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1407818 + ... + 1407873.

It is an arithmetic number, because the mean of its divisors is an integer number (13139896).

Almost surely, 2^78839348 is an apocalyptic number.

It is an amenable number.

78839348 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78839348 is a wasteful number, since it uses less digits than its factorization.

78839348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815702 (or 2815700 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 50.

The square root of 78839348 is about 8879.1524370291. The cubic root of 78839348 is about 428.7929878954.

The spelling of 78839348 in words is "seventy-eight million, eight hundred thirty-nine thousand, three hundred forty-eight".