8372261 has 2 divisors, whose sum is σ = 8372262. Its totient is φ = 8372260.

The previous prime is 8372237. The next prime is 8372291. The reversal of 8372261 is 1622738.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5712100 + 2660161 = 2390^2 + 1631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8372261 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8372291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4186130 + 4186131.

It is an arithmetic number, because the mean of its divisors is an integer number (4186131).

Almost surely, 2^8372261 is an apocalyptic number.

It is an amenable number.

8372261 is a deficient number, since it is larger than the sum of its proper divisors (1).

8372261 is an equidigital number, since it uses as much as digits as its factorization.

8372261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 8372261 is about 2893.4859598761. The cubic root of 8372261 is about 203.0552641403.

Adding to 8372261 its reverse (1622738), we get a palindrome (9994999).

The spelling of 8372261 in words is "eight million, three hundred seventy-two thousand, two hundred sixty-one".