78941329 has 4 divisors (see below), whose sum is σ = 79023600. Its totient is φ = 78859060.

The previous prime is 78941311. The next prime is 78941377. The reversal of 78941329 is 92314987.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78941329 - 2⁹ = 78940817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78947329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39679 + ... + 41620.

It is an arithmetic number, because the mean of its divisors is an integer number (19755900).

Almost surely, 2^78941329 is an apocalyptic number.

It is an amenable number.

78941329 is a deficient number, since it is larger than the sum of its proper divisors (82271).

78941329 is an equidigital number, since it uses as much as digits as its factorization.

78941329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82270.

The product of its digits is 108864, while the sum is 43.

The square root of 78941329 is about 8884.8933026796. The cubic root of 78941329 is about 428.9777936535.

The spelling of 78941329 in words is "seventy-eight million, nine hundred forty-one thousand, three hundred twenty-nine".