378701879 has 2 divisors, whose sum is σ = 378701880. Its totient is φ = 378701878.

The previous prime is 378701867. The next prime is 378701893. The reversal of 378701879 is 978107873.

It is a weak prime.

It is an emirp because it is prime and its reverse (978107873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 378701879 - 2²⁴ = 361924663 is a prime.

It is a super-2 number, since 2×378701879² = 286830226316261282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378701779) 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, 189350939 + 189350940.

It is an arithmetic number, because the mean of its divisors is an integer number (189350940).

Almost surely, 2^378701879 is an apocalyptic number.

378701879 is a deficient number, since it is larger than the sum of its proper divisors (1).

378701879 is an equidigital number, since it uses as much as digits as its factorization.

378701879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 592704, while the sum is 50.

The square root of 378701879 is about 19460.2641040660. The cubic root of 378701879 is about 723.4899232481.

The spelling of 378701879 in words is "three hundred seventy-eight million, seven hundred one thousand, eight hundred seventy-nine".