78330329 has 8 divisors (see below), whose sum is σ = 97658688. Its totient is φ = 61036560.

The previous prime is 78330319. The next prime is 78330361. The reversal of 78330329 is 92303387.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78330329 - 2²⁴ = 61553113 is a prime.

It is a super-2 number, since 2×78330329² = 12271280882496482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78330319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508562 + ... + 508715.

It is an arithmetic number, because the mean of its divisors is an integer number (12207336).

Almost surely, 2^78330329 is an apocalyptic number.

It is an amenable number.

78330329 is a deficient number, since it is larger than the sum of its proper divisors (19328359).

78330329 is a wasteful number, since it uses less digits than its factorization.

78330329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017295.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 78330329 is about 8850.4423053314. The cubic root of 78330329 is about 427.8681738739.

The spelling of 78330329 in words is "seventy-eight million, three hundred thirty thousand, three hundred twenty-nine".