78375263 has 2 divisors, whose sum is σ = 78375264. Its totient is φ = 78375262.

The previous prime is 78375259. The next prime is 78375277. The reversal of 78375263 is 36257387.

It is a weak prime.

It is an emirp because it is prime and its reverse (36257387) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78375263 - 2² = 78375259 is a prime.

It is a super-2 number, since 2×78375263² = 12285363700638338, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78375263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78375203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39187631 + 39187632.

It is an arithmetic number, because the mean of its divisors is an integer number (39187632).

Almost surely, 2^78375263 is an apocalyptic number.

78375263 is a deficient number, since it is larger than the sum of its proper divisors (1).

78375263 is an equidigital number, since it uses as much as digits as its factorization.

78375263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 78375263 is about 8852.9804585800. The cubic root of 78375263 is about 427.9499734087.

The spelling of 78375263 in words is "seventy-eight million, three hundred seventy-five thousand, two hundred sixty-three".