78055763 has 2 divisors, whose sum is σ = 78055764. Its totient is φ = 78055762.

The previous prime is 78055753. The next prime is 78055771. The reversal of 78055763 is 36755087.

It is a strong prime.

It is an emirp because it is prime and its reverse (36755087) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78055763 - 2¹² = 78051667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78055763.

It is not a weakly prime, because it can be changed into another prime (78055753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39027881 + 39027882.

It is an arithmetic number, because the mean of its divisors is an integer number (39027882).

Almost surely, 2^78055763 is an apocalyptic number.

78055763 is a deficient number, since it is larger than the sum of its proper divisors (1).

78055763 is an equidigital number, since it uses as much as digits as its factorization.

78055763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 78055763 is about 8834.9172605067. The cubic root of 78055763 is about 427.3676628328.

The spelling of 78055763 in words is "seventy-eight million, fifty-five thousand, seven hundred sixty-three".