78094663 has 2 divisors, whose sum is σ = 78094664. Its totient is φ = 78094662.

The previous prime is 78094661. The next prime is 78094669. The reversal of 78094663 is 36649087.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78094663 - 2¹ = 78094661 is a prime.

Together with 78094661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78094661) 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 as a sum of consecutive naturals, namely, 39047331 + 39047332.

It is an arithmetic number, because the mean of its divisors is an integer number (39047332).

Almost surely, 2^78094663 is an apocalyptic number.

78094663 is a deficient number, since it is larger than the sum of its proper divisors (1).

78094663 is an equidigital number, since it uses as much as digits as its factorization.

78094663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 78094663 is about 8837.1184783276. The cubic root of 78094663 is about 427.4386455957.

The spelling of 78094663 in words is "seventy-eight million, ninety-four thousand, six hundred sixty-three".