9250009 has 2 divisors, whose sum is σ = 9250010. Its totient is φ = 9250008.

The previous prime is 9249983. The next prime is 9250013. The reversal of 9250009 is 9000529.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9168784 + 81225 = 3028^2 + 285^2 .

It is a cyclic number.

It is not a de Polignac number, because 9250009 - 2⁷ = 9249881 is a prime.

It is not a weakly prime, because it can be changed into another prime (9250039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4625004 + 4625005.

It is an arithmetic number, because the mean of its divisors is an integer number (4625005).

Almost surely, 2^9250009 is an apocalyptic number.

It is an amenable number.

9250009 is a deficient number, since it is larger than the sum of its proper divisors (1).

9250009 is an equidigital number, since it uses as much as digits as its factorization.

9250009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 9250009 is about 3041.3827447396. The cubic root of 9250009 is about 209.9168907715.

The spelling of 9250009 in words is "nine million, two hundred fifty thousand, nine".