78234383 has 2 divisors, whose sum is σ = 78234384. Its totient is φ = 78234382.

The previous prime is 78234361. The next prime is 78234397. The reversal of 78234383 is 38343287.

It is a strong prime.

It is an emirp because it is prime and its reverse (38343287) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78234383 - 2⁸ = 78234127 is a prime.

It is a super-2 number, since 2×78234383² = 12241237366781378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78234353) 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, 39117191 + 39117192.

It is an arithmetic number, because the mean of its divisors is an integer number (39117192).

Almost surely, 2^78234383 is an apocalyptic number.

78234383 is a deficient number, since it is larger than the sum of its proper divisors (1).

78234383 is an equidigital number, since it uses as much as digits as its factorization.

78234383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 38.

The square root of 78234383 is about 8845.0202373991. The cubic root of 78234383 is about 427.6934054148.

The spelling of 78234383 in words is "seventy-eight million, two hundred thirty-four thousand, three hundred eighty-three".