38728127 has 2 divisors, whose sum is σ = 38728128. Its totient is φ = 38728126.

The previous prime is 38728121. The next prime is 38728139. The reversal of 38728127 is 72182783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38728127 - 2⁴ = 38728111 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38728121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19364063 + 19364064.

It is an arithmetic number, because the mean of its divisors is an integer number (19364064).

Almost surely, 2^38728127 is an apocalyptic number.

38728127 is a deficient number, since it is larger than the sum of its proper divisors (1).

38728127 is an equidigital number, since it uses as much as digits as its factorization.

38728127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 38.

The square root of 38728127 is about 6223.1926693619. The cubic root of 38728127 is about 338.3312899702.

Subtracting 38728127 from its reverse (72182783), we obtain a square (33454656 = 5784²).

The spelling of 38728127 in words is "thirty-eight million, seven hundred twenty-eight thousand, one hundred twenty-seven".