11523669 has 4 divisors (see below), whose sum is σ = 15364896. Its totient is φ = 7682444.

The previous prime is 11523653. The next prime is 11523683. The reversal of 11523669 is 96632511.

It is a happy number.

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: 96632511 = 3 ⋅32210837.

It is a cyclic number.

It is not a de Polignac number, because 11523669 - 2⁴ = 11523653 is a prime.

It is a super-2 number, since 2×11523669² = 265589894443122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11503669) 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, 1920609 + ... + 1920614.

It is an arithmetic number, because the mean of its divisors is an integer number (3841224).

Almost surely, 2^11523669 is an apocalyptic number.

It is an amenable number.

11523669 is a deficient number, since it is larger than the sum of its proper divisors (3841227).

11523669 is an equidigital number, since it uses as much as digits as its factorization.

11523669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841226.

The product of its digits is 9720, while the sum is 33.

The square root of 11523669 is about 3394.6530014127. The cubic root of 11523669 is about 225.8726212003.

The spelling of 11523669 in words is "eleven million, five hundred twenty-three thousand, six hundred sixty-nine".