378698227 has 2 divisors, whose sum is σ = 378698228. Its totient is φ = 378698226.

The previous prime is 378698209. The next prime is 378698233. The reversal of 378698227 is 722896873.

It is a strong prime.

It is an emirp because it is prime and its reverse (722896873) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378698227 is a prime.

It is not a weakly prime, because it can be changed into another prime (378698237) 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, 189349113 + 189349114.

It is an arithmetic number, because the mean of its divisors is an integer number (189349114).

Almost surely, 2^378698227 is an apocalyptic number.

378698227 is a deficient number, since it is larger than the sum of its proper divisors (1).

378698227 is an equidigital number, since it uses as much as digits as its factorization.

378698227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 52.

The square root of 378698227 is about 19460.1702716086. The cubic root of 378698227 is about 723.4875975896.

The spelling of 378698227 in words is "three hundred seventy-eight million, six hundred ninety-eight thousand, two hundred twenty-seven".