38775901 has 2 divisors, whose sum is σ = 38775902. Its totient is φ = 38775900.

The previous prime is 38775899. The next prime is 38775911. The reversal of 38775901 is 10957783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30360100 + 8415801 = 5510^2 + 2901^2 .

It is a cyclic number.

It is not a de Polignac number, because 38775901 - 2¹ = 38775899 is a prime.

Together with 38775899, 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 (38775911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19387950 + 19387951.

It is an arithmetic number, because the mean of its divisors is an integer number (19387951).

Almost surely, 2^38775901 is an apocalyptic number.

It is an amenable number.

38775901 is a deficient number, since it is larger than the sum of its proper divisors (1).

38775901 is an equidigital number, since it uses as much as digits as its factorization.

38775901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 38775901 is about 6227.0298698497. The cubic root of 38775901 is about 338.4703516684.

The spelling of 38775901 in words is "thirty-eight million, seven hundred seventy-five thousand, nine hundred one".