78829543 has 12 divisors (see below), whose sum is σ = 85932408. Its totient is φ = 72277920.

The previous prime is 78829529. The next prime is 78829549. The reversal of 78829543 is 34592887.

It is a de Polignac number, because none of the positive numbers 2^k-78829543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78829493 and 78829502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78829549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25048 + ... + 28018.

It is an arithmetic number, because the mean of its divisors is an integer number (7161034).

Almost surely, 2^78829543 is an apocalyptic number.

78829543 is a deficient number, since it is larger than the sum of its proper divisors (7102865).

78829543 is a wasteful number, since it uses less digits than its factorization.

78829543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154 (or 3141 counting only the distinct ones).

The product of its digits is 483840, while the sum is 46.

The square root of 78829543 is about 8878.6002838285. The cubic root of 78829543 is about 428.7752112832.

The spelling of 78829543 in words is "seventy-eight million, eight hundred twenty-nine thousand, five hundred forty-three".