38797861 has 2 divisors, whose sum is σ = 38797862. Its totient is φ = 38797860.

The previous prime is 38797831. The next prime is 38797873. The reversal of 38797861 is 16879783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31013761 + 7784100 = 5569^2 + 2790^2 .

It is a cyclic number.

It is not a de Polignac number, because 38797861 - 2¹⁵ = 38765093 is a prime.

It is a super-3 number, since 3×38797861³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38797831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19398930 + 19398931.

It is an arithmetic number, because the mean of its divisors is an integer number (19398931).

Almost surely, 2^38797861 is an apocalyptic number.

It is an amenable number.

38797861 is a deficient number, since it is larger than the sum of its proper divisors (1).

38797861 is an equidigital number, since it uses as much as digits as its factorization.

38797861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 49.

The square root of 38797861 is about 6228.7929007152. The cubic root of 38797861 is about 338.5342350430.

The spelling of 38797861 in words is "thirty-eight million, seven hundred ninety-seven thousand, eight hundred sixty-one".