378989503 has 2 divisors, whose sum is σ = 378989504. Its totient is φ = 378989502.

The previous prime is 378989489. The next prime is 378989521. The reversal of 378989503 is 305989873.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378989503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378989593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189494751 + 189494752.

It is an arithmetic number, because the mean of its divisors is an integer number (189494752).

Almost surely, 2^378989503 is an apocalyptic number.

378989503 is a deficient number, since it is larger than the sum of its proper divisors (1).

378989503 is an equidigital number, since it uses as much as digits as its factorization.

378989503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 378989503 is about 19467.6527347290. The cubic root of 378989503 is about 723.6730403799.

The spelling of 378989503 in words is "three hundred seventy-eight million, nine hundred eighty-nine thousand, five hundred three".