378788029 has 2 divisors, whose sum is σ = 378788030. Its totient is φ = 378788028.

The previous prime is 378788027. The next prime is 378788107. The reversal of 378788029 is 920887873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 281232900 + 97555129 = 16770^2 + 9877^2 .

It is a cyclic number.

It is not a de Polignac number, because 378788029 - 2¹ = 378788027 is a prime.

Together with 378788027, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378788027) 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, 189394014 + 189394015.

It is an arithmetic number, because the mean of its divisors is an integer number (189394015).

Almost surely, 2^378788029 is an apocalyptic number.

It is an amenable number.

378788029 is a deficient number, since it is larger than the sum of its proper divisors (1).

378788029 is an equidigital number, since it uses as much as digits as its factorization.

378788029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The square root of 378788029 is about 19462.4774630570. The cubic root of 378788029 is about 723.5447807623.

The spelling of 378788029 in words is "three hundred seventy-eight million, seven hundred eighty-eight thousand, twenty-nine".