38908669 has 2 divisors, whose sum is σ = 38908670. Its totient is φ = 38908668.

The previous prime is 38908643. The next prime is 38908687. The reversal of 38908669 is 96680983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38564100 + 344569 = 6210^2 + 587^2 .

It is a cyclic number.

It is not a de Polignac number, because 38908669 - 2²¹ = 36811517 is a prime.

It is a super-2 number, since 2×38908669² = 3027769046703122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38908619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19454334 + 19454335.

It is an arithmetic number, because the mean of its divisors is an integer number (19454335).

Almost surely, 2^38908669 is an apocalyptic number.

It is an amenable number.

38908669 is a deficient number, since it is larger than the sum of its proper divisors (1).

38908669 is an equidigital number, since it uses as much as digits as its factorization.

38908669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 38908669 is about 6237.6813801284. The cubic root of 38908669 is about 338.8562171057.

The spelling of 38908669 in words is "thirty-eight million, nine hundred eight thousand, six hundred sixty-nine".