7426609 has 4 divisors (see below), whose sum is σ = 7498816. Its totient is φ = 7354404.

The previous prime is 7426597. The next prime is 7426613. The reversal of 7426609 is 9066247.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9066247 = 61 ⋅148627.

It is a cyclic number.

It is not a de Polignac number, because 7426609 - 2¹⁹ = 6902321 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7426649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35949 + ... + 36154.

It is an arithmetic number, because the mean of its divisors is an integer number (1874704).

Almost surely, 2^7426609 is an apocalyptic number.

It is an amenable number.

7426609 is a deficient number, since it is larger than the sum of its proper divisors (72207).

7426609 is a wasteful number, since it uses less digits than its factorization.

7426609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72206.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 7426609 is about 2725.1805444777. The cubic root of 7426609 is about 195.1028079401.

The spelling of 7426609 in words is "seven million, four hundred twenty-six thousand, six hundred nine".