38059981 has 2 divisors, whose sum is σ = 38059982. Its totient is φ = 38059980.

The previous prime is 38059979. The next prime is 38059999. The reversal of 38059981 is 18995083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37711881 + 348100 = 6141^2 + 590^2 .

It is a cyclic number.

It is not a de Polignac number, because 38059981 - 2¹ = 38059979 is a prime.

It is a super-2 number, since 2×38059981² = 2897124307440722, which contains 22 as substring.

Together with 38059979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38059951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19029990 + 19029991.

It is an arithmetic number, because the mean of its divisors is an integer number (19029991).

Almost surely, 2^38059981 is an apocalyptic number.

It is an amenable number.

38059981 is a deficient number, since it is larger than the sum of its proper divisors (1).

38059981 is an equidigital number, since it uses as much as digits as its factorization.

38059981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 38059981 is about 6169.2771861864. The cubic root of 38059981 is about 336.3743377320.

The spelling of 38059981 in words is "thirty-eight million, fifty-nine thousand, nine hundred eighty-one".