7485609 has 4 divisors (see below), whose sum is σ = 9980816. Its totient is φ = 4990404.

The previous prime is 7485571. The next prime is 7485623. The reversal of 7485609 is 9065847.

7485609 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7485609 - 2¹¹ = 7483561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7485659) 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 in 3 ways as a sum of consecutive naturals, for example, 1247599 + ... + 1247604.

It is an arithmetic number, because the mean of its divisors is an integer number (2495204).

Almost surely, 2^7485609 is an apocalyptic number.

It is an amenable number.

7485609 is a deficient number, since it is larger than the sum of its proper divisors (2495207).

7485609 is a wasteful number, since it uses less digits than its factorization.

7485609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2495206.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 7485609 is about 2735.9841008310. The cubic root of 7485609 is about 195.6181044295.

The spelling of 7485609 in words is "seven million, four hundred eighty-five thousand, six hundred nine".