8426261 has 2 divisors, whose sum is σ = 8426262. Its totient is φ = 8426260.

The previous prime is 8426227. The next prime is 8426263. The reversal of 8426261 is 1626248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6280036 + 2146225 = 2506^2 + 1465^2 .

It is a cyclic number.

It is not a de Polignac number, because 8426261 - 2¹⁰ = 8425237 is a prime.

Together with 8426263, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8426263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4213130 + 4213131.

It is an arithmetic number, because the mean of its divisors is an integer number (4213131).

Almost surely, 2^8426261 is an apocalyptic number.

It is an amenable number.

8426261 is a deficient number, since it is larger than the sum of its proper divisors (1).

8426261 is an equidigital number, since it uses as much as digits as its factorization.

8426261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 29.

The square root of 8426261 is about 2902.8022667760. The cubic root of 8426261 is about 203.4908889626.

The spelling of 8426261 in words is "eight million, four hundred twenty-six thousand, two hundred sixty-one".