78559263 has 6 divisors (see below), whose sum is σ = 113474504. Its totient is φ = 52372836.

The previous prime is 78559253. The next prime is 78559291. The reversal of 78559263 is 36295587.

It is a happy number.

78559263 is a `hidden beast` number, since 78 + 559 + 26 + 3 = 666.

It is not a de Polignac number, because 78559263 - 2¹⁰ = 78558239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78559223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4364395 + ... + 4364412.

Almost surely, 2^78559263 is an apocalyptic number.

78559263 is a deficient number, since it is larger than the sum of its proper divisors (34915241).

78559263 is a wasteful number, since it uses less digits than its factorization.

78559263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8728813 (or 8728810 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 78559263 is about 8863.3663469361. The cubic root of 78559263 is about 428.2846081365.

The spelling of 78559263 in words is "seventy-eight million, five hundred fifty-nine thousand, two hundred sixty-three".