378334933 has 2 divisors, whose sum is σ = 378334934. Its totient is φ = 378334932.

The previous prime is 378334919. The next prime is 378335057. The reversal of 378334933 is 339433873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 354305329 + 24029604 = 18823^2 + 4902^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378334933 is a prime.

It is a super-2 number, since 2×378334933² = 286274643056228978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 378334933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378337933) 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, 189167466 + 189167467.

It is an arithmetic number, because the mean of its divisors is an integer number (189167467).

Almost surely, 2^378334933 is an apocalyptic number.

It is an amenable number.

378334933 is a deficient number, since it is larger than the sum of its proper divisors (1).

378334933 is an equidigital number, since it uses as much as digits as its factorization.

378334933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 43.

The square root of 378334933 is about 19450.8337353441. The cubic root of 378334933 is about 723.2561707538.

The spelling of 378334933 in words is "three hundred seventy-eight million, three hundred thirty-four thousand, nine hundred thirty-three".