78700763 has 2 divisors, whose sum is σ = 78700764. Its totient is φ = 78700762.

The previous prime is 78700759. The next prime is 78700777. The reversal of 78700763 is 36700787.

It is a weak prime.

It is an emirp because it is prime and its reverse (36700787) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78700763 - 2² = 78700759 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (78700753) 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, 39350381 + 39350382.

It is an arithmetic number, because the mean of its divisors is an integer number (39350382).

Almost surely, 2^78700763 is an apocalyptic number.

78700763 is a deficient number, since it is larger than the sum of its proper divisors (1).

78700763 is an equidigital number, since it uses as much as digits as its factorization.

78700763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 78700763 is about 8871.3450502165. The cubic root of 78700763 is about 428.5415942671.

The spelling of 78700763 in words is "seventy-eight million, seven hundred thousand, seven hundred sixty-three".