38782361 has 2 divisors, whose sum is σ = 38782362. Its totient is φ = 38782360.

The previous prime is 38782343. The next prime is 38782399. The reversal of 38782361 is 16328783.

It is a happy number.

It is an a-pointer prime, because the next prime (38782399) can be obtained adding 38782361 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38204761 + 577600 = 6181^2 + 760^2 .

It is a cyclic number.

It is not a de Polignac number, because 38782361 - 2¹⁴ = 38765977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38382361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19391180 + 19391181.

It is an arithmetic number, because the mean of its divisors is an integer number (19391181).

Almost surely, 2^38782361 is an apocalyptic number.

It is an amenable number.

38782361 is a deficient number, since it is larger than the sum of its proper divisors (1).

38782361 is an equidigital number, since it uses as much as digits as its factorization.

38782361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 38782361 is about 6227.5485546080. The cubic root of 38782361 is about 338.4891468221.

The spelling of 38782361 in words is "thirty-eight million, seven hundred eighty-two thousand, three hundred sixty-one".