8378057 has 2 divisors, whose sum is σ = 8378058. Its totient is φ = 8378056.

The previous prime is 8378053. The next prime is 8378087. The reversal of 8378057 is 7508738.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8202496 + 175561 = 2864^2 + 419^2 .

It is a cyclic number.

It is not a de Polignac number, because 8378057 - 2² = 8378053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8378057.

It is not a weakly prime, because it can be changed into another prime (8378053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4189028 + 4189029.

It is an arithmetic number, because the mean of its divisors is an integer number (4189029).

Almost surely, 2^8378057 is an apocalyptic number.

It is an amenable number.

8378057 is a deficient number, since it is larger than the sum of its proper divisors (1).

8378057 is an equidigital number, since it uses as much as digits as its factorization.

8378057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 8378057 is about 2894.4873466643. The cubic root of 8378057 is about 203.1021107778.

The spelling of 8378057 in words is "eight million, three hundred seventy-eight thousand, fifty-seven".