8281237 has 2 divisors, whose sum is σ = 8281238. Its totient is φ = 8281236.

The previous prime is 8281223. The next prime is 8281249. The reversal of 8281237 is 7321828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6937956 + 1343281 = 2634^2 + 1159^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8281237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8281199 and 8281208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8281837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4140618 + 4140619.

It is an arithmetic number, because the mean of its divisors is an integer number (4140619).

Almost surely, 2^8281237 is an apocalyptic number.

It is an amenable number.

8281237 is a deficient number, since it is larger than the sum of its proper divisors (1).

8281237 is an equidigital number, since it uses as much as digits as its factorization.

8281237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 8281237 is about 2877.7138495688. The cubic root of 8281237 is about 202.3167024977.

The spelling of 8281237 in words is "eight million, two hundred eighty-one thousand, two hundred thirty-seven".