378744523 has 2 divisors, whose sum is σ = 378744524. Its totient is φ = 378744522.

The previous prime is 378744503. The next prime is 378744539. The reversal of 378744523 is 325447873.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 378744523 - 2⁹ = 378744011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378744523.

It is not a weakly prime, because it can be changed into another prime (378744503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189372261 + 189372262.

It is an arithmetic number, because the mean of its divisors is an integer number (189372262).

Almost surely, 2^378744523 is an apocalyptic number.

378744523 is a deficient number, since it is larger than the sum of its proper divisors (1).

378744523 is an equidigital number, since it uses as much as digits as its factorization.

378744523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 43.

The square root of 378744523 is about 19461.3597418063. The cubic root of 378744523 is about 723.5170785982.

The spelling of 378744523 in words is "three hundred seventy-eight million, seven hundred forty-four thousand, five hundred twenty-three".