378680213 has 2 divisors, whose sum is σ = 378680214. Its totient is φ = 378680212.

The previous prime is 378680207. The next prime is 378680251. The reversal of 378680213 is 312086873.

It is a happy number.

It is an a-pointer prime, because the next prime (378680251) can be obtained adding 378680213 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254179249 + 124500964 = 15943^2 + 11158^2 .

It is a cyclic number.

It is not a de Polignac number, because 378680213 - 2⁸ = 378679957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378680413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189340106 + 189340107.

It is an arithmetic number, because the mean of its divisors is an integer number (189340107).

Almost surely, 2^378680213 is an apocalyptic number.

It is an amenable number.

378680213 is a deficient number, since it is larger than the sum of its proper divisors (1).

378680213 is an equidigital number, since it uses as much as digits as its factorization.

378680213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 378680213 is about 19459.7074232888. The cubic root of 378680213 is about 723.4761257357.

The spelling of 378680213 in words is "three hundred seventy-eight million, six hundred eighty thousand, two hundred thirteen".