7654609 has 4 divisors (see below), whose sum is σ = 7669300. Its totient is φ = 7639920.

The previous prime is 7654571. The next prime is 7654627. The reversal of 7654609 is 9064567.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9064567 = 41 ⋅221087.

It can be written as a sum of positive squares in 2 ways, for example, as 5419584 + 2235025 = 2328^2 + 1495^2 .

It is a cyclic number.

It is not a de Polignac number, because 7654609 - 2⁷ = 7654481 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7654649) 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, 6534 + ... + 7615.

It is an arithmetic number, because the mean of its divisors is an integer number (1917325).

Almost surely, 2^7654609 is an apocalyptic number.

It is an amenable number.

7654609 is a deficient number, since it is larger than the sum of its proper divisors (14691).

7654609 is a wasteful number, since it uses less digits than its factorization.

7654609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14690.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 7654609 is about 2766.6964054627. The cubic root of 7654609 is about 197.0792967551.

The spelling of 7654609 in words is "seven million, six hundred fifty-four thousand, six hundred nine".