78382963 has 2 divisors, whose sum is σ = 78382964. Its totient is φ = 78382962.

The previous prime is 78382949. The next prime is 78382979. The reversal of 78382963 is 36928387.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78382963 is a prime.

It is a super-2 number, since 2×78382963² = 12287777777318738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78382943) 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, 39191481 + 39191482.

It is an arithmetic number, because the mean of its divisors is an integer number (39191482).

Almost surely, 2^78382963 is an apocalyptic number.

78382963 is a deficient number, since it is larger than the sum of its proper divisors (1).

78382963 is an equidigital number, since it uses as much as digits as its factorization.

78382963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 46.

The square root of 78382963 is about 8853.4153296906. The cubic root of 78382963 is about 427.9639876387.

It can be divided in two parts, 7838 and 2963, that added together give a palindrome (10801).

The spelling of 78382963 in words is "seventy-eight million, three hundred eighty-two thousand, nine hundred sixty-three".