38967857 has 2 divisors, whose sum is σ = 38967858. Its totient is φ = 38967856.

The previous prime is 38967823. The next prime is 38967883. The reversal of 38967857 is 75876983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23726641 + 15241216 = 4871^2 + 3904^2 .

It is a cyclic number.

It is not a de Polignac number, because 38967857 - 2⁸ = 38967601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38967799 and 38967808.

It is not a weakly prime, because it can be changed into another prime (38967457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19483928 + 19483929.

It is an arithmetic number, because the mean of its divisors is an integer number (19483929).

Almost surely, 2^38967857 is an apocalyptic number.

It is an amenable number.

38967857 is a deficient number, since it is larger than the sum of its proper divisors (1).

38967857 is an equidigital number, since it uses as much as digits as its factorization.

38967857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 53.

The square root of 38967857 is about 6242.4239682995. The cubic root of 38967857 is about 339.0279531310.

The spelling of 38967857 in words is "thirty-eight million, nine hundred sixty-seven thousand, eight hundred fifty-seven".