11608609 has 4 divisors (see below), whose sum is σ = 11715220. Its totient is φ = 11502000.

The previous prime is 11608607. The next prime is 11608633. The reversal of 11608609 is 90680611.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10336225 + 1272384 = 3215^2 + 1128^2 .

It is a cyclic number.

It is not a de Polignac number, because 11608609 - 2¹ = 11608607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11608607) 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, 53142 + ... + 53359.

It is an arithmetic number, because the mean of its divisors is an integer number (2928805).

Almost surely, 2^11608609 is an apocalyptic number.

It is an amenable number.

11608609 is a deficient number, since it is larger than the sum of its proper divisors (106611).

11608609 is a wasteful number, since it uses less digits than its factorization.

11608609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106610.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 11608609 is about 3407.1408834975. The cubic root of 11608609 is about 226.4262259592.

The spelling of 11608609 in words is "eleven million, six hundred eight thousand, six hundred nine".