78808607 has 2 divisors, whose sum is σ = 78808608. Its totient is φ = 78808606.

The previous prime is 78808591. The next prime is 78808621. The reversal of 78808607 is 70680887.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78808607 - 2⁴ = 78808591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78808627) 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, 39404303 + 39404304.

It is an arithmetic number, because the mean of its divisors is an integer number (39404304).

Almost surely, 2^78808607 is an apocalyptic number.

78808607 is a deficient number, since it is larger than the sum of its proper divisors (1).

78808607 is an equidigital number, since it uses as much as digits as its factorization.

78808607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 78808607 is about 8877.4211908639. The cubic root of 78808607 is about 428.7372490662.

The spelling of 78808607 in words is "seventy-eight million, eight hundred eight thousand, six hundred seven".