78314347 has 2 divisors, whose sum is σ = 78314348. Its totient is φ = 78314346.

The previous prime is 78314323. The next prime is 78314351. The reversal of 78314347 is 74341387.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78314347 - 2¹⁵ = 78281579 is a prime.

It is a super-2 number, since 2×78314347² = 12266273892072818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78314317) 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, 39157173 + 39157174.

It is an arithmetic number, because the mean of its divisors is an integer number (39157174).

Almost surely, 2^78314347 is an apocalyptic number.

78314347 is a deficient number, since it is larger than the sum of its proper divisors (1).

78314347 is an equidigital number, since it uses as much as digits as its factorization.

78314347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 37.

The square root of 78314347 is about 8849.5393665433. The cubic root of 78314347 is about 427.8390721013.

The spelling of 78314347 in words is "seventy-eight million, three hundred fourteen thousand, three hundred forty-seven".