78606263 has 2 divisors, whose sum is σ = 78606264. Its totient is φ = 78606262.

The previous prime is 78606259. The next prime is 78606337. The reversal of 78606263 is 36260687.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78606263 - 2² = 78606259 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78606223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39303131 + 39303132.

It is an arithmetic number, because the mean of its divisors is an integer number (39303132).

Almost surely, 2^78606263 is an apocalyptic number.

78606263 is a deficient number, since it is larger than the sum of its proper divisors (1).

78606263 is an equidigital number, since it uses as much as digits as its factorization.

78606263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 78606263 is about 8866.0173133149. The cubic root of 78606263 is about 428.3700016889.

The spelling of 78606263 in words is "seventy-eight million, six hundred six thousand, two hundred sixty-three".