238621007 has 2 divisors, whose sum is σ = 238621008. Its totient is φ = 238621006.

The previous prime is 238620997. The next prime is 238621039. The reversal of 238621007 is 700126832.

It is a happy number.

238621007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238621007 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 (238621087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119310503 + 119310504.

It is an arithmetic number, because the mean of its divisors is an integer number (119310504).

Almost surely, 2^238621007 is an apocalyptic number.

238621007 is a deficient number, since it is larger than the sum of its proper divisors (1).

238621007 is an equidigital number, since it uses as much as digits as its factorization.

238621007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 238621007 is about 15447.3624609511. The cubic root of 238621007 is about 620.2539776318.

Adding to 238621007 its reverse (700126832), we get a palindrome (938747839).

The spelling of 238621007 in words is "two hundred thirty-eight million, six hundred twenty-one thousand, seven".