238945087 has 2 divisors, whose sum is σ = 238945088. Its totient is φ = 238945086.

The previous prime is 238945067. The next prime is 238945111. The reversal of 238945087 is 780549832.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238945087 is a prime.

It is a super-3 number, since 3×238945087³ (a number of 26 digits) contains 333 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238945027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119472543 + 119472544.

It is an arithmetic number, because the mean of its divisors is an integer number (119472544).

Almost surely, 2^238945087 is an apocalyptic number.

238945087 is a deficient number, since it is larger than the sum of its proper divisors (1).

238945087 is an equidigital number, since it uses as much as digits as its factorization.

238945087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 238945087 is about 15457.8487183696. The cubic root of 238945087 is about 620.5346472169.

The spelling of 238945087 in words is "two hundred thirty-eight million, nine hundred forty-five thousand, eighty-seven".