238420727 has 2 divisors, whose sum is σ = 238420728. Its totient is φ = 238420726.

The previous prime is 238420669. The next prime is 238420729. The reversal of 238420727 is 727024832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238420727 - 2¹⁰ = 238419703 is a prime.

Together with 238420729, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_13079807 and since 238420727 and 13079807 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238420729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119210363 + 119210364.

It is an arithmetic number, because the mean of its divisors is an integer number (119210364).

Almost surely, 2^238420727 is an apocalyptic number.

238420727 is a deficient number, since it is larger than the sum of its proper divisors (1).

238420727 is an equidigital number, since it uses as much as digits as its factorization.

238420727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 238420727 is about 15440.8784400370. The cubic root of 238420727 is about 620.0803980027.

The spelling of 238420727 in words is "two hundred thirty-eight million, four hundred twenty thousand, seven hundred twenty-seven".