378078983 has 2 divisors, whose sum is σ = 378078984. Its totient is φ = 378078982.

The previous prime is 378078977. The next prime is 378079073. The reversal of 378078983 is 389870873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378078983 - 2¹⁸ = 377816839 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378078973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189039491 + 189039492.

It is an arithmetic number, because the mean of its divisors is an integer number (189039492).

Almost surely, 2^378078983 is an apocalyptic number.

378078983 is a deficient number, since it is larger than the sum of its proper divisors (1).

378078983 is an equidigital number, since it uses as much as digits as its factorization.

378078983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The square root of 378078983 is about 19444.2532127104. The cubic root of 378078983 is about 723.0930356043.

The spelling of 378078983 in words is "three hundred seventy-eight million, seventy-eight thousand, nine hundred eighty-three".