38051989 has 2 divisors, whose sum is σ = 38051990. Its totient is φ = 38051988.

The previous prime is 38051987. The next prime is 38052017. The reversal of 38051989 is 98915083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34692100 + 3359889 = 5890^2 + 1833^2 .

It is a cyclic number.

It is not a de Polignac number, because 38051989 - 2¹ = 38051987 is a prime.

It is a super-2 number, since 2×38051989² = 2895907733712242, which contains 22 as substring.

Together with 38051987, 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 (38051987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19025994 + 19025995.

It is an arithmetic number, because the mean of its divisors is an integer number (19025995).

Almost surely, 2^38051989 is an apocalyptic number.

It is an amenable number.

38051989 is a deficient number, since it is larger than the sum of its proper divisors (1).

38051989 is an equidigital number, since it uses as much as digits as its factorization.

38051989 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 38051989 is about 6168.6294263799. The cubic root of 38051989 is about 336.3507916360.

The spelling of 38051989 in words is "thirty-eight million, fifty-one thousand, nine hundred eighty-nine".