38355797 has 2 divisors, whose sum is σ = 38355798. Its totient is φ = 38355796.

The previous prime is 38355769. The next prime is 38355809. The reversal of 38355797 is 79755383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30924721 + 7431076 = 5561^2 + 2726^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38355797 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38355497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19177898 + 19177899.

It is an arithmetic number, because the mean of its divisors is an integer number (19177899).

Almost surely, 2^38355797 is an apocalyptic number.

It is an amenable number.

38355797 is a deficient number, since it is larger than the sum of its proper divisors (1).

38355797 is an equidigital number, since it uses as much as digits as its factorization.

38355797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 793800, while the sum is 47.

The square root of 38355797 is about 6193.2057127145. The cubic root of 38355797 is about 337.2435641460.

The spelling of 38355797 in words is "thirty-eight million, three hundred fifty-five thousand, seven hundred ninety-seven".