11608409 has 8 divisors (see below), whose sum is σ = 11998272. Its totient is φ = 11224080.

The previous prime is 11608403. The next prime is 11608447. The reversal of 11608409 is 90480611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11608409 - 2⁴ = 11608393 is a prime.

It is a super-2 number, since 2×11608409² = 269510319022562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11608403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3119 + ... + 5739.

It is an arithmetic number, because the mean of its divisors is an integer number (1499784).

Almost surely, 2^11608409 is an apocalyptic number.

It is an amenable number.

11608409 is a deficient number, since it is larger than the sum of its proper divisors (389863).

11608409 is a wasteful number, since it uses less digits than its factorization.

11608409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 11608409 is about 3407.1115332492. Note that the first 3 decimals coincide. The cubic root of 11608409 is about 226.4249256167.

The spelling of 11608409 in words is "eleven million, six hundred eight thousand, four hundred nine".