378294247 has 2 divisors, whose sum is σ = 378294248. Its totient is φ = 378294246.

The previous prime is 378294239. The next prime is 378294289. The reversal of 378294247 is 742492873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378294247 - 2³ = 378294239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378294197 and 378294206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378291247) 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, 189147123 + 189147124.

It is an arithmetic number, because the mean of its divisors is an integer number (189147124).

Almost surely, 2^378294247 is an apocalyptic number.

378294247 is a deficient number, since it is larger than the sum of its proper divisors (1).

378294247 is an equidigital number, since it uses as much as digits as its factorization.

378294247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 46.

The square root of 378294247 is about 19449.7878394598. The cubic root of 378294247 is about 723.2302435899.

The spelling of 378294247 in words is "three hundred seventy-eight million, two hundred ninety-four thousand, two hundred forty-seven".