238484731 has 2 divisors, whose sum is σ = 238484732. Its totient is φ = 238484730.

The previous prime is 238484707. The next prime is 238484737. The reversal of 238484731 is 137484832.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238484731 is a prime.

It is a super-2 number, since 2×238484731² = 113749933840284722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (238484737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119242365 + 119242366.

It is an arithmetic number, because the mean of its divisors is an integer number (119242366).

Almost surely, 2^238484731 is an apocalyptic number.

238484731 is a deficient number, since it is larger than the sum of its proper divisors (1).

238484731 is an equidigital number, since it uses as much as digits as its factorization.

238484731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 40.

The square root of 238484731 is about 15442.9508514403. The cubic root of 238484731 is about 620.1358798610.

The spelling of 238484731 in words is "two hundred thirty-eight million, four hundred eighty-four thousand, seven hundred thirty-one".