238645763 has 2 divisors, whose sum is σ = 238645764. Its totient is φ = 238645762.

The previous prime is 238645739. The next prime is 238645783. The reversal of 238645763 is 367546832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238645763 - 2⁶ = 238645699 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (238645733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119322881 + 119322882.

It is an arithmetic number, because the mean of its divisors is an integer number (119322882).

Almost surely, 2^238645763 is an apocalyptic number.

238645763 is a deficient number, since it is larger than the sum of its proper divisors (1).

238645763 is an equidigital number, since it uses as much as digits as its factorization.

238645763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 44.

The square root of 238645763 is about 15448.1637420115. The cubic root of 238645763 is about 620.2754265348.

The spelling of 238645763 in words is "two hundred thirty-eight million, six hundred forty-five thousand, seven hundred sixty-three".