38648849 has 2 divisors, whose sum is σ = 38648850. Its totient is φ = 38648848.

The previous prime is 38648843. The next prime is 38648917. The reversal of 38648849 is 94884683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38440000 + 208849 = 6200^2 + 457^2 .

It is a cyclic number.

It is not a de Polignac number, because 38648849 - 2⁴ = 38648833 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 38648797 and 38648806.

It is not a weakly prime, because it can be changed into another prime (38648843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19324424 + 19324425.

It is an arithmetic number, because the mean of its divisors is an integer number (19324425).

Almost surely, 2^38648849 is an apocalyptic number.

It is an amenable number.

38648849 is a deficient number, since it is larger than the sum of its proper divisors (1).

38648849 is an equidigital number, since it uses as much as digits as its factorization.

38648849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1327104, while the sum is 50.

The square root of 38648849 is about 6216.8198461915. The cubic root of 38648849 is about 338.1002731100.

The spelling of 38648849 in words is "thirty-eight million, six hundred forty-eight thousand, eight hundred forty-nine".