38524921 has 2 divisors, whose sum is σ = 38524922. Its totient is φ = 38524920.

The previous prime is 38524901. The next prime is 38524939. The reversal of 38524921 is 12942583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36000000 + 2524921 = 6000^2 + 1589^2 .

It is a cyclic number.

It is not a de Polignac number, because 38524921 - 2¹³ = 38516729 is a prime.

It is not a weakly prime, because it can be changed into another prime (38524901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19262460 + 19262461.

It is an arithmetic number, because the mean of its divisors is an integer number (19262461).

Almost surely, 2^38524921 is an apocalyptic number.

It is an amenable number.

38524921 is a deficient number, since it is larger than the sum of its proper divisors (1).

38524921 is an equidigital number, since it uses as much as digits as its factorization.

38524921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 38524921 is about 6206.8446895343. The cubic root of 38524921 is about 337.7385119704.

The spelling of 38524921 in words is "thirty-eight million, five hundred twenty-four thousand, nine hundred twenty-one".