38744869 has 2 divisors, whose sum is σ = 38744870. Its totient is φ = 38744868.

The previous prime is 38744863. The next prime is 38744929. The reversal of 38744869 is 96844783.

38744869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35247969 + 3496900 = 5937^2 + 1870^2 .

It is a cyclic number.

It is not a de Polignac number, because 38744869 - 2³ = 38744861 is a prime.

It is a super-2 number, since 2×38744869² = 3002329747654322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38744861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19372434 + 19372435.

It is an arithmetic number, because the mean of its divisors is an integer number (19372435).

Almost surely, 2^38744869 is an apocalyptic number.

It is an amenable number.

38744869 is a deficient number, since it is larger than the sum of its proper divisors (1).

38744869 is an equidigital number, since it uses as much as digits as its factorization.

38744869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 49.

The square root of 38744869 is about 6224.5376535129. The cubic root of 38744869 is about 338.3800359925.

The spelling of 38744869 in words is "thirty-eight million, seven hundred forty-four thousand, eight hundred sixty-nine".