378474787 has 2 divisors, whose sum is σ = 378474788. Its totient is φ = 378474786.

The previous prime is 378474779. The next prime is 378474797. The reversal of 378474787 is 787474873.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378474787 - 2³ = 378474779 is a prime.

It is not a weakly prime, because it can be changed into another prime (378474797) 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, 189237393 + 189237394.

It is an arithmetic number, because the mean of its divisors is an integer number (189237394).

Almost surely, 2^378474787 is an apocalyptic number.

378474787 is a deficient number, since it is larger than the sum of its proper divisors (1).

378474787 is an equidigital number, since it uses as much as digits as its factorization.

378474787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7375872, while the sum is 55.

The square root of 378474787 is about 19454.4284675752. The cubic root of 378474787 is about 723.3452785774.

The spelling of 378474787 in words is "three hundred seventy-eight million, four hundred seventy-four thousand, seven hundred eighty-seven".