378884741 has 2 divisors, whose sum is σ = 378884742. Its totient is φ = 378884740.

The previous prime is 378884717. The next prime is 378884747. The reversal of 378884741 is 147488873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350475841 + 28408900 = 18721^2 + 5330^2 .

It is a cyclic number.

It is not a de Polignac number, because 378884741 - 2¹⁰ = 378883717 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 378884741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378884747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189442370 + 189442371.

It is an arithmetic number, because the mean of its divisors is an integer number (189442371).

Almost surely, 2^378884741 is an apocalyptic number.

It is an amenable number.

378884741 is a deficient number, since it is larger than the sum of its proper divisors (1).

378884741 is an equidigital number, since it uses as much as digits as its factorization.

378884741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1204224, while the sum is 50.

The square root of 378884741 is about 19464.9618802606. The cubic root of 378884741 is about 723.6063539052.

The spelling of 378884741 in words is "three hundred seventy-eight million, eight hundred eighty-four thousand, seven hundred forty-one".