8053781 has 2 divisors, whose sum is σ = 8053782. Its totient is φ = 8053780.

The previous prime is 8053763. The next prime is 8053807. The reversal of 8053781 is 1873508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5522500 + 2531281 = 2350^2 + 1591^2 .

It is a cyclic number.

It is not a de Polignac number, because 8053781 - 2²² = 3859477 is a prime.

It is a super-2 number, since 2×8053781² = 129726776791922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8053751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4026890 + 4026891.

It is an arithmetic number, because the mean of its divisors is an integer number (4026891).

Almost surely, 2^8053781 is an apocalyptic number.

It is an amenable number.

8053781 is a deficient number, since it is larger than the sum of its proper divisors (1).

8053781 is an equidigital number, since it uses as much as digits as its factorization.

8053781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 8053781 is about 2837.9184272984. The cubic root of 8053781 is about 200.4471744300.

The spelling of 8053781 in words is "eight million, fifty-three thousand, seven hundred eighty-one".