9481609 has 2 divisors, whose sum is σ = 9481610. Its totient is φ = 9481608.

The previous prime is 9481603. The next prime is 9481613. The reversal of 9481609 is 9061849.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9030025 + 451584 = 3005^2 + 672^2 .

It is a cyclic number.

It is not a de Polignac number, because 9481609 - 2³ = 9481601 is a prime.

It is not a weakly prime, because it can be changed into another prime (9481601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4740804 + 4740805.

It is an arithmetic number, because the mean of its divisors is an integer number (4740805).

Almost surely, 2^9481609 is an apocalyptic number.

It is an amenable number.

9481609 is a deficient number, since it is larger than the sum of its proper divisors (1).

9481609 is an equidigital number, since it uses as much as digits as its factorization.

9481609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 9481609 is about 3079.2221420352. Note that the first 3 decimals coincide. The cubic root of 9481609 is about 211.6544224495.

The spelling of 9481609 in words is "nine million, four hundred eighty-one thousand, six hundred nine".