38782201 has 2 divisors, whose sum is σ = 38782202. Its totient is φ = 38782200.

The previous prime is 38782189. The next prime is 38782223. The reversal of 38782201 is 10228783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34047225 + 4734976 = 5835^2 + 2176^2 .

It is a cyclic number.

It is not a de Polignac number, because 38782201 - 2⁵ = 38782169 is a prime.

It is a super-2 number, since 2×38782201² = 3008118228808802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38782231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19391100 + 19391101.

It is an arithmetic number, because the mean of its divisors is an integer number (19391101).

Almost surely, 2^38782201 is an apocalyptic number.

It is an amenable number.

38782201 is a deficient number, since it is larger than the sum of its proper divisors (1).

38782201 is an equidigital number, since it uses as much as digits as its factorization.

38782201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 38782201 is about 6227.5357084484. The cubic root of 38782201 is about 338.4886813327.

It can be divided in two parts, 38782 and 201, that added together give a palindrome (38983).

The spelling of 38782201 in words is "thirty-eight million, seven hundred eighty-two thousand, two hundred one".