378929297 has 2 divisors, whose sum is σ = 378929298. Its totient is φ = 378929296.

The previous prime is 378929251. The next prime is 378929311. The reversal of 378929297 is 792929873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320803921 + 58125376 = 17911^2 + 7624^2 .

It is a cyclic number.

It is not a de Polignac number, because 378929297 - 2⁸ = 378929041 is a prime.

It is not a weakly prime, because it can be changed into another prime (378929227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189464648 + 189464649.

It is an arithmetic number, because the mean of its divisors is an integer number (189464649).

Almost surely, 2^378929297 is an apocalyptic number.

It is an amenable number.

378929297 is a deficient number, since it is larger than the sum of its proper divisors (1).

378929297 is an equidigital number, since it uses as much as digits as its factorization.

378929297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3429216, while the sum is 56.

The square root of 378929297 is about 19466.1063646534. The cubic root of 378929297 is about 723.6347176242.

The spelling of 378929297 in words is "three hundred seventy-eight million, nine hundred twenty-nine thousand, two hundred ninety-seven".