11652609 has 4 divisors (see below), whose sum is σ = 15536816. Its totient is φ = 7768404.

The previous prime is 11652593. The next prime is 11652623. The reversal of 11652609 is 90625611.

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 11652609 - 2⁴ = 11652593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11652689) 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, 1942099 + ... + 1942104.

It is an arithmetic number, because the mean of its divisors is an integer number (3884204).

Almost surely, 2^11652609 is an apocalyptic number.

It is an amenable number.

11652609 is a deficient number, since it is larger than the sum of its proper divisors (3884207).

11652609 is an equidigital number, since it uses as much as digits as its factorization.

11652609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3884206.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 11652609 is about 3413.5918033649. The cubic root of 11652609 is about 226.7119390059.

It can be divided in two parts, 116 and 52609, that added together give a palindrome (52725).

The spelling of 11652609 in words is "eleven million, six hundred fifty-two thousand, six hundred nine".