78959339 has 4 divisors (see below), whose sum is σ = 83604024. Its totient is φ = 74314656.

The previous prime is 78959323. The next prime is 78959351. The reversal of 78959339 is 93395987.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78959339 - 2⁴ = 78959323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78959039) 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, 2322317 + ... + 2322350.

It is an arithmetic number, because the mean of its divisors is an integer number (20901006).

Almost surely, 2^78959339 is an apocalyptic number.

78959339 is a deficient number, since it is larger than the sum of its proper divisors (4644685).

78959339 is a wasteful number, since it uses less digits than its factorization.

78959339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644684.

The product of its digits is 1837080, while the sum is 53.

The square root of 78959339 is about 8885.9067629590. The cubic root of 78959339 is about 429.0104140933.

The spelling of 78959339 in words is "seventy-eight million, nine hundred fifty-nine thousand, three hundred thirty-nine".