78914207 has 2 divisors, whose sum is σ = 78914208. Its totient is φ = 78914206.

The previous prime is 78914203. The next prime is 78914233. The reversal of 78914207 is 70241987.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78914207 - 2² = 78914203 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78914203) 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, 39457103 + 39457104.

It is an arithmetic number, because the mean of its divisors is an integer number (39457104).

Almost surely, 2^78914207 is an apocalyptic number.

78914207 is a deficient number, since it is larger than the sum of its proper divisors (1).

78914207 is an equidigital number, since it uses as much as digits as its factorization.

78914207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 78914207 is about 8883.3668729823. The cubic root of 78914207 is about 428.9286598281.

The spelling of 78914207 in words is "seventy-eight million, nine hundred fourteen thousand, two hundred seven".