8389261 has 2 divisors, whose sum is σ = 8389262. Its totient is φ = 8389260.

The previous prime is 8389237. The next prime is 8389301. The reversal of 8389261 is 1629838.

8389261 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., 7590025 + 799236 = 2755^2 + 894^2 .

It is a cyclic number.

It is not a de Polignac number, because 8389261 - 2²³ = 653 is a prime.

It is a super-2 number, since 2×8389261² = 140759400252242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8389261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8389201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4194630 + 4194631.

It is an arithmetic number, because the mean of its divisors is an integer number (4194631).

Almost surely, 2^8389261 is an apocalyptic number.

It is an amenable number.

8389261 is a deficient number, since it is larger than the sum of its proper divisors (1).

8389261 is an equidigital number, since it uses as much as digits as its factorization.

8389261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 8389261 is about 2896.4221032163. The cubic root of 8389261 is about 203.1926067975.

The spelling of 8389261 in words is "eight million, three hundred eighty-nine thousand, two hundred sixty-one".