238587497 has 2 divisors, whose sum is σ = 238587498. Its totient is φ = 238587496.

The previous prime is 238587491. The next prime is 238587511. The reversal of 238587497 is 794785832.

238587497 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 can be written as a sum of positive squares in only one way, i.e., 231770176 + 6817321 = 15224^2 + 2611^2 .

It is a cyclic number.

It is not a de Polignac number, because 238587497 - 2¹⁶ = 238521961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (238587491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119293748 + 119293749.

It is an arithmetic number, because the mean of its divisors is an integer number (119293749).

Almost surely, 2^238587497 is an apocalyptic number.

It is an amenable number.

238587497 is a deficient number, since it is larger than the sum of its proper divisors (1).

238587497 is an equidigital number, since it uses as much as digits as its factorization.

238587497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 53.

The square root of 238587497 is about 15446.2777716834. The cubic root of 238587497 is about 620.2249417923.

The spelling of 238587497 in words is "two hundred thirty-eight million, five hundred eighty-seven thousand, four hundred ninety-seven".