78104263 has 2 divisors, whose sum is σ = 78104264. Its totient is φ = 78104262.

The previous prime is 78104261. The next prime is 78104267. The reversal of 78104263 is 36240187.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78104263 - 2¹ = 78104261 is a prime.

It is a super-2 number, since 2×78104263² = 12200551797546338, which contains 22 as substring.

Together with 78104261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78104261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39052131 + 39052132.

It is an arithmetic number, because the mean of its divisors is an integer number (39052132).

Almost surely, 2^78104263 is an apocalyptic number.

78104263 is a deficient number, since it is larger than the sum of its proper divisors (1).

78104263 is an equidigital number, since it uses as much as digits as its factorization.

78104263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 78104263 is about 8837.6616251133. The cubic root of 78104263 is about 427.4561595662.

The spelling of 78104263 in words is "seventy-eight million, one hundred four thousand, two hundred sixty-three".