38806429 has 2 divisors, whose sum is σ = 38806430. Its totient is φ = 38806428.

The previous prime is 38806421. The next prime is 38806433. The reversal of 38806429 is 92460883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34786404 + 4020025 = 5898^2 + 2005^2 .

It is a cyclic number.

It is not a de Polignac number, because 38806429 - 2³ = 38806421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38806391 and 38806400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38806421) 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, 19403214 + 19403215.

It is an arithmetic number, because the mean of its divisors is an integer number (19403215).

Almost surely, 2^38806429 is an apocalyptic number.

It is an amenable number.

38806429 is a deficient number, since it is larger than the sum of its proper divisors (1).

38806429 is an equidigital number, since it uses as much as digits as its factorization.

38806429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 38806429 is about 6229.4806364576. The cubic root of 38806429 is about 338.5591534943.

The spelling of 38806429 in words is "thirty-eight million, eight hundred six thousand, four hundred twenty-nine".