238323739 has 2 divisors, whose sum is σ = 238323740. Its totient is φ = 238323738.

The previous prime is 238323737. The next prime is 238323773. The reversal of 238323739 is 937323832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238323739 - 2¹ = 238323737 is a prime.

Together with 238323737, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (238323737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119161869 + 119161870.

It is an arithmetic number, because the mean of its divisors is an integer number (119161870).

Almost surely, 2^238323739 is an apocalyptic number.

238323739 is a deficient number, since it is larger than the sum of its proper divisors (1).

238323739 is an equidigital number, since it uses as much as digits as its factorization.

238323739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 40.

The square root of 238323739 is about 15437.7374961488. The cubic root of 238323739 is about 619.9963050421.

The spelling of 238323739 in words is "two hundred thirty-eight million, three hundred twenty-three thousand, seven hundred thirty-nine".