78424359 has 8 divisors (see below), whose sum is σ = 112609392. Its totient is φ = 48261120.

The previous prime is 78424351. The next prime is 78424363. The reversal of 78424359 is 95342487.

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

It is not a de Polignac number, because 78424359 - 2³ = 78424351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78424359.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78424351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005402 + ... + 1005479.

It is an arithmetic number, because the mean of its divisors is an integer number (14076174).

Almost surely, 2^78424359 is an apocalyptic number.

78424359 is a deficient number, since it is larger than the sum of its proper divisors (34185033).

78424359 is a wasteful number, since it uses less digits than its factorization.

78424359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010897.

The product of its digits is 241920, while the sum is 42.

The square root of 78424359 is about 8855.7528759558. The cubic root of 78424359 is about 428.0393138691.

The spelling of 78424359 in words is "seventy-eight million, four hundred twenty-four thousand, three hundred fifty-nine".