38621101 has 2 divisors, whose sum is σ = 38621102. Its totient is φ = 38621100.

The previous prime is 38621083. The next prime is 38621111. The reversal of 38621101 is 10112683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32376100 + 6245001 = 5690^2 + 2499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38621101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38621111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19310550 + 19310551.

It is an arithmetic number, because the mean of its divisors is an integer number (19310551).

Almost surely, 2^38621101 is an apocalyptic number.

It is an amenable number.

38621101 is a deficient number, since it is larger than the sum of its proper divisors (1).

38621101 is an equidigital number, since it uses as much as digits as its factorization.

38621101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 38621101 is about 6214.5877578485. The cubic root of 38621101 is about 338.0193405363.

Adding to 38621101 its reverse (10112683), we get a palindrome (48733784).

The spelling of 38621101 in words is "thirty-eight million, six hundred twenty-one thousand, one hundred one".