38024821 has 2 divisors, whose sum is σ = 38024822. Its totient is φ = 38024820.

The previous prime is 38024813. The next prime is 38024849. The reversal of 38024821 is 12842083.

It is an a-pointer prime, because the next prime (38024849) can be obtained adding 38024821 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26122321 + 11902500 = 5111^2 + 3450^2 .

It is an emirp because it is prime and its reverse (12842083) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38024821 - 2³ = 38024813 is a prime.

It is a super-3 number, since 3×38024821³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38024821.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38021821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19012410 + 19012411.

It is an arithmetic number, because the mean of its divisors is an integer number (19012411).

Almost surely, 2^38024821 is an apocalyptic number.

It is an amenable number.

38024821 is a deficient number, since it is larger than the sum of its proper divisors (1).

38024821 is an equidigital number, since it uses as much as digits as its factorization.

38024821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 38024821 is about 6166.4269232676. The cubic root of 38024821 is about 336.2707243898.

The spelling of 38024821 in words is "thirty-eight million, twenty-four thousand, eight hundred twenty-one".