38086861 has 2 divisors, whose sum is σ = 38086862. Its totient is φ = 38086860.

The previous prime is 38086823. The next prime is 38086883. The reversal of 38086861 is 16868083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30140100 + 7946761 = 5490^2 + 2819^2 .

It is a cyclic number.

It is not a de Polignac number, because 38086861 - 2⁷ = 38086733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38086891) 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, 19043430 + 19043431.

It is an arithmetic number, because the mean of its divisors is an integer number (19043431).

Almost surely, 2^38086861 is an apocalyptic number.

It is an amenable number.

38086861 is a deficient number, since it is larger than the sum of its proper divisors (1).

38086861 is an equidigital number, since it uses as much as digits as its factorization.

38086861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 38086861 is about 6171.4553388970. The cubic root of 38086861 is about 336.4535076300.

The spelling of 38086861 in words is "thirty-eight million, eighty-six thousand, eight hundred sixty-one".