78870359 has 2 divisors, whose sum is σ = 78870360. Its totient is φ = 78870358.

The previous prime is 78870353. The next prime is 78870373. The reversal of 78870359 is 95307887.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78870359 - 2¹⁶ = 78804823 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78870353) 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 as a sum of consecutive naturals, namely, 39435179 + 39435180.

It is an arithmetic number, because the mean of its divisors is an integer number (39435180).

Almost surely, 2^78870359 is an apocalyptic number.

78870359 is a deficient number, since it is larger than the sum of its proper divisors (1).

78870359 is an equidigital number, since it uses as much as digits as its factorization.

78870359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 78870359 is about 8880.8985468814. The cubic root of 78870359 is about 428.8492016034.

The spelling of 78870359 in words is "seventy-eight million, eight hundred seventy thousand, three hundred fifty-nine".