38899873 has 2 divisors, whose sum is σ = 38899874. Its totient is φ = 38899872.

The previous prime is 38899867. The next prime is 38899891. The reversal of 38899873 is 37899883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25482304 + 13417569 = 5048^2 + 3663^2 .

It is a cyclic number.

It is not a de Polignac number, because 38899873 - 2¹⁷ = 38768801 is a prime.

It is a super-2 number, since 2×38899873² = 3026400238832258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38899843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19449936 + 19449937.

It is an arithmetic number, because the mean of its divisors is an integer number (19449937).

Almost surely, 2^38899873 is an apocalyptic number.

It is an amenable number.

38899873 is a deficient number, since it is larger than the sum of its proper divisors (1).

38899873 is an equidigital number, since it uses as much as digits as its factorization.

38899873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 55.

The square root of 38899873 is about 6236.9762705978. The cubic root of 38899873 is about 338.8306803466.

The spelling of 38899873 in words is "thirty-eight million, eight hundred ninety-nine thousand, eight hundred seventy-three".