378903353 has 2 divisors, whose sum is σ = 378903354. Its totient is φ = 378903352.

The previous prime is 378903341. The next prime is 378903373. The reversal of 378903353 is 353309873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360696064 + 18207289 = 18992^2 + 4267^2 .

It is a cyclic number.

It is not a de Polignac number, because 378903353 - 2⁴ = 378903337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378903353.

It is not a weakly prime, because it can be changed into another prime (378903373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189451676 + 189451677.

It is an arithmetic number, because the mean of its divisors is an integer number (189451677).

Almost surely, 2^378903353 is an apocalyptic number.

It is an amenable number.

378903353 is a deficient number, since it is larger than the sum of its proper divisors (1).

378903353 is an equidigital number, since it uses as much as digits as its factorization.

378903353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 41.

The square root of 378903353 is about 19465.4399642032. The cubic root of 378903353 is about 723.6182023114.

The spelling of 378903353 in words is "three hundred seventy-eight million, nine hundred three thousand, three hundred fifty-three".