378077407 has 2 divisors, whose sum is σ = 378077408. Its totient is φ = 378077406.

The previous prime is 378077389. The next prime is 378077411. The reversal of 378077407 is 704770873.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 378077407 - 2⁷ = 378077279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378077477) 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, 189038703 + 189038704.

It is an arithmetic number, because the mean of its divisors is an integer number (189038704).

Almost surely, 2^378077407 is an apocalyptic number.

378077407 is a deficient number, since it is larger than the sum of its proper divisors (1).

378077407 is an equidigital number, since it uses as much as digits as its factorization.

378077407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230496, while the sum is 43.

The square root of 378077407 is about 19444.2126865553. The cubic root of 378077407 is about 723.0920308793.

The spelling of 378077407 in words is "three hundred seventy-eight million, seventy-seven thousand, four hundred seven".