238949 has 2 divisors, whose sum is σ = 238950. Its totient is φ = 238948.

The previous prime is 238943. The next prime is 238967. The reversal of 238949 is 949832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145924 + 93025 = 382^2 + 305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238949 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119474 + 119475.

It is an arithmetic number, because the mean of its divisors is an integer number (119475).

2²³⁸⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

238949 is a deficient number, since it is larger than the sum of its proper divisors (1).

238949 is an equidigital number, since it uses as much as digits as its factorization.

238949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 238949 is about 488.8240992423. The cubic root of 238949 is about 62.0538034521.

The spelling of 238949 in words is "two hundred thirty-eight thousand, nine hundred forty-nine".