378832513 has 2 divisors, whose sum is σ = 378832514. Its totient is φ = 378832512.

The previous prime is 378832477. The next prime is 378832541. The reversal of 378832513 is 315238873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377447184 + 1385329 = 19428^2 + 1177^2 .

It is a cyclic number.

It is not a de Polignac number, because 378832513 - 2⁹ = 378832001 is a prime.

It is not a weakly prime, because it can be changed into another prime (378832213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189416256 + 189416257.

It is an arithmetic number, because the mean of its divisors is an integer number (189416257).

Almost surely, 2^378832513 is an apocalyptic number.

It is an amenable number.

378832513 is a deficient number, since it is larger than the sum of its proper divisors (1).

378832513 is an equidigital number, since it uses as much as digits as its factorization.

378832513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 378832513 is about 19463.6202439320. The cubic root of 378832513 is about 723.5731034685.

The spelling of 378832513 in words is "three hundred seventy-eight million, eight hundred thirty-two thousand, five hundred thirteen".