378490523 has 2 divisors, whose sum is σ = 378490524. Its totient is φ = 378490522.

The previous prime is 378490477. The next prime is 378490529. The reversal of 378490523 is 325094873.

It is a strong prime.

It is an emirp because it is prime and its reverse (325094873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 378490523 - 2⁶ = 378490459 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (378490529) 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, 189245261 + 189245262.

It is an arithmetic number, because the mean of its divisors is an integer number (189245262).

Almost surely, 2^378490523 is an apocalyptic number.

378490523 is a deficient number, since it is larger than the sum of its proper divisors (1).

378490523 is an equidigital number, since it uses as much as digits as its factorization.

378490523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 378490523 is about 19454.8328957100. The cubic root of 378490523 is about 723.3553033787.

The spelling of 378490523 in words is "three hundred seventy-eight million, four hundred ninety thousand, five hundred twenty-three".