38166761 has 2 divisors, whose sum is σ = 38166762. Its totient is φ = 38166760.

The previous prime is 38166749. The next prime is 38166781. The reversal of 38166761 is 16766183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37589161 + 577600 = 6131^2 + 760^2 .

It is a cyclic number.

It is not a de Polignac number, because 38166761 - 2¹⁸ = 37904617 is a prime.

It is a super-2 number, since 2×38166761² = 2913403290462242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38166701) 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, 19083380 + 19083381.

It is an arithmetic number, because the mean of its divisors is an integer number (19083381).

Almost surely, 2^38166761 is an apocalyptic number.

It is an amenable number.

38166761 is a deficient number, since it is larger than the sum of its proper divisors (1).

38166761 is an equidigital number, since it uses as much as digits as its factorization.

38166761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 38166761 is about 6177.9252989980. The cubic root of 38166761 is about 336.6886180940.

The spelling of 38166761 in words is "thirty-eight million, one hundred sixty-six thousand, seven hundred sixty-one".