378770957 has 2 divisors, whose sum is σ = 378770958. Its totient is φ = 378770956.

The previous prime is 378770933. The next prime is 378770971. The reversal of 378770957 is 759077873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287166916 + 91604041 = 16946^2 + 9571^2 .

It is a cyclic number.

It is not a de Polignac number, because 378770957 - 2⁶ = 378770893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378770899 and 378770908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378770257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189385478 + 189385479.

It is an arithmetic number, because the mean of its divisors is an integer number (189385479).

Almost surely, 2^378770957 is an apocalyptic number.

It is an amenable number.

378770957 is a deficient number, since it is larger than the sum of its proper divisors (1).

378770957 is an equidigital number, since it uses as much as digits as its factorization.

378770957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2593080, while the sum is 53.

The square root of 378770957 is about 19462.0388705809. The cubic root of 378770957 is about 723.5339105296.

The spelling of 378770957 in words is "three hundred seventy-eight million, seven hundred seventy thousand, nine hundred fifty-seven".