78001207 has 2 divisors, whose sum is σ = 78001208. Its totient is φ = 78001206.

The previous prime is 78001141. The next prime is 78001223. The reversal of 78001207 is 70210087.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78001207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78001237) 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, 39000603 + 39000604.

It is an arithmetic number, because the mean of its divisors is an integer number (39000604).

Almost surely, 2^78001207 is an apocalyptic number.

78001207 is a deficient number, since it is larger than the sum of its proper divisors (1).

78001207 is an equidigital number, since it uses as much as digits as its factorization.

78001207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 78001207 is about 8831.8291989825. The cubic root of 78001207 is about 427.2680720469.

The spelling of 78001207 in words is "seventy-eight million, one thousand, two hundred seven".