238746631 has 2 divisors, whose sum is σ = 238746632. Its totient is φ = 238746630.

The previous prime is 238746617. The next prime is 238746667. The reversal of 238746631 is 136647832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238746631 - 2⁹ = 238746119 is a prime.

It is a super-2 number, since 2×238746631² = 113999907627700322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238756631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119373315 + 119373316.

It is an arithmetic number, because the mean of its divisors is an integer number (119373316).

Almost surely, 2^238746631 is an apocalyptic number.

238746631 is a deficient number, since it is larger than the sum of its proper divisors (1).

238746631 is an equidigital number, since it uses as much as digits as its factorization.

238746631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 40.

The square root of 238746631 is about 15451.4281216980. The cubic root of 238746631 is about 620.3628044796.

The spelling of 238746631 in words is "two hundred thirty-eight million, seven hundred forty-six thousand, six hundred thirty-one".