839261 has 2 divisors, whose sum is σ = 839262. Its totient is φ = 839260.

The previous prime is 839227. The next prime is 839269. The reversal of 839261 is 162938.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 755161 + 84100 = 869^2 + 290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-839261 is a prime.

It is a super-2 number, since 2×839261² = 1408718052242, which contains 22 as substring.

It is a Chen prime.

It is a d-powerful number, because it can be written as 8⁵ + 3⁷ + 2¹⁹ + 9² + 6⁷ + 1 .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (839269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419630 + 419631.

It is an arithmetic number, because the mean of its divisors is an integer number (419631).

2⁸³⁹²⁶¹ is an apocalyptic number.

It is an amenable number.

839261 is a deficient number, since it is larger than the sum of its proper divisors (1).

839261 is an equidigital number, since it uses as much as digits as its factorization.

839261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 29.

The square root of 839261 is about 916.1118927293. Note that the first 3 decimals coincide. The cubic root of 839261 is about 94.3262018385.

The spelling of 839261 in words is "eight hundred thirty-nine thousand, two hundred sixty-one".