8138773 has 2 divisors, whose sum is σ = 8138774. Its totient is φ = 8138772.

The previous prime is 8138761. The next prime is 8138789. The reversal of 8138773 is 3778318.

8138773 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7436529 + 702244 = 2727^2 + 838^2 .

It is a cyclic number.

It is not a de Polignac number, because 8138773 - 2¹³ = 8130581 is a prime.

8138773 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8138743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4069386 + 4069387.

It is an arithmetic number, because the mean of its divisors is an integer number (4069387).

Almost surely, 2^8138773 is an apocalyptic number.

It is an amenable number.

8138773 is a deficient number, since it is larger than the sum of its proper divisors (1).

8138773 is an equidigital number, since it uses as much as digits as its factorization.

8138773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 37.

The square root of 8138773 is about 2852.8534837948. The cubic root of 8138773 is about 201.1498185848.

It can be divided in two parts, 8138 and 773, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 8138773 in words is "eight million, one hundred thirty-eight thousand, seven hundred seventy-three".