78229343 has 2 divisors, whose sum is σ = 78229344. Its totient is φ = 78229342.

The previous prime is 78229301. The next prime is 78229363. The reversal of 78229343 is 34392287.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78229343 - 2²⁰ = 77180767 is a prime.

It is a super-2 number, since 2×78229343² = 12239660212423298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78229297 and 78229306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78229363) 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, 39114671 + 39114672.

It is an arithmetic number, because the mean of its divisors is an integer number (39114672).

Almost surely, 2^78229343 is an apocalyptic number.

78229343 is a deficient number, since it is larger than the sum of its proper divisors (1).

78229343 is an equidigital number, since it uses as much as digits as its factorization.

78229343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 78229343 is about 8844.7353267353. The cubic root of 78229343 is about 427.6842209575.

The spelling of 78229343 in words is "seventy-eight million, two hundred twenty-nine thousand, three hundred forty-three".