78463111 has 2 divisors, whose sum is σ = 78463112. Its totient is φ = 78463110.

The previous prime is 78463081. The next prime is 78463117. The reversal of 78463111 is 11136487.

It is a strong prime.

It is an emirp because it is prime and its reverse (11136487) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78463111 - 2⁵ = 78463079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78463117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39231555 + 39231556.

It is an arithmetic number, because the mean of its divisors is an integer number (39231556).

Almost surely, 2^78463111 is an apocalyptic number.

78463111 is a deficient number, since it is larger than the sum of its proper divisors (1).

78463111 is an equidigital number, since it uses as much as digits as its factorization.

78463111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 31.

The square root of 78463111 is about 8857.9405620042. The cubic root of 78463111 is about 428.1098049272.

Adding to 78463111 its reverse (11136487), we get a palindrome (89599598).

The spelling of 78463111 in words is "seventy-eight million, four hundred sixty-three thousand, one hundred eleven".