7850261 has 2 divisors, whose sum is σ = 7850262. Its totient is φ = 7850260.

The previous prime is 7850239. The next prime is 7850267. The reversal of 7850261 is 1620587.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6838225 + 1012036 = 2615^2 + 1006^2 .

It is a cyclic number.

It is not a de Polignac number, because 7850261 - 2⁶ = 7850197 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7850267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3925130 + 3925131.

It is an arithmetic number, because the mean of its divisors is an integer number (3925131).

Almost surely, 2^7850261 is an apocalyptic number.

It is an amenable number.

7850261 is a deficient number, since it is larger than the sum of its proper divisors (1).

7850261 is an equidigital number, since it uses as much as digits as its factorization.

7850261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 7850261 is about 2801.8317222845. The cubic root of 7850261 is about 198.7443076834.

The spelling of 7850261 in words is "seven million, eight hundred fifty thousand, two hundred sixty-one".