38928163 has 2 divisors, whose sum is σ = 38928164. Its totient is φ = 38928162.

The previous prime is 38928143. The next prime is 38928193. The reversal of 38928163 is 36182983.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38928163 - 2¹³ = 38919971 is a prime.

It is not a weakly prime, because it can be changed into another prime (38928103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19464081 + 19464082.

It is an arithmetic number, because the mean of its divisors is an integer number (19464082).

Almost surely, 2^38928163 is an apocalyptic number.

38928163 is a deficient number, since it is larger than the sum of its proper divisors (1).

38928163 is an equidigital number, since it uses as much as digits as its factorization.

38928163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 40.

The square root of 38928163 is about 6239.2437843059. The cubic root of 38928163 is about 338.9127988425.

The spelling of 38928163 in words is "thirty-eight million, nine hundred twenty-eight thousand, one hundred sixty-three".