8261243 has 2 divisors, whose sum is σ = 8261244. Its totient is φ = 8261242.

The previous prime is 8261233. The next prime is 8261251. The reversal of 8261243 is 3421628.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8261243 is a prime.

It is not a weakly prime, because it can be changed into another prime (8261233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4130621 + 4130622.

It is an arithmetic number, because the mean of its divisors is an integer number (4130622).

Almost surely, 2^8261243 is an apocalyptic number.

8261243 is a deficient number, since it is larger than the sum of its proper divisors (1).

8261243 is an equidigital number, since it uses as much as digits as its factorization.

8261243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 26.

The square root of 8261243 is about 2874.2378120121. The cubic root of 8261243 is about 202.1537485815.

The spelling of 8261243 in words is "eight million, two hundred sixty-one thousand, two hundred forty-three".