378949 has 2 divisors, whose sum is σ = 378950. Its totient is φ = 378948.

The previous prime is 378941. The next prime is 378953. The reversal of 378949 is 949873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294849 + 84100 = 543^2 + 290^2 .

It is a cyclic number.

It is not a de Polignac number, because 378949 - 2³ = 378941 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 (378941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189474 + 189475.

It is an arithmetic number, because the mean of its divisors is an integer number (189475).

2³⁷⁸⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

378949 is a deficient number, since it is larger than the sum of its proper divisors (1).

378949 is an equidigital number, since it uses as much as digits as its factorization.

378949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 378949 is about 615.5883364717. The cubic root of 378949 is about 72.3647259566.

The spelling of 378949 in words is "three hundred seventy-eight thousand, nine hundred forty-nine".