238911007 has 2 divisors, whose sum is σ = 238911008. Its totient is φ = 238911006.

The previous prime is 238910989. The next prime is 238911061. The reversal of 238911007 is 700119832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238911007 - 2¹⁵ = 238878239 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238911007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238911307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119455503 + 119455504.

It is an arithmetic number, because the mean of its divisors is an integer number (119455504).

Almost surely, 2^238911007 is an apocalyptic number.

238911007 is a deficient number, since it is larger than the sum of its proper divisors (1).

238911007 is an equidigital number, since it uses as much as digits as its factorization.

238911007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 238911007 is about 15456.7463264427. The cubic root of 238911007 is about 620.5051441673.

The spelling of 238911007 in words is "two hundred thirty-eight million, nine hundred eleven thousand, seven".