11669401 has 4 divisors (see below), whose sum is σ = 12283600. Its totient is φ = 11055204.

The previous prime is 11669387. The next prime is 11669417. The reversal of 11669401 is 10496611.

11669401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 10496611 = 1031 ⋅10181.

It is a cyclic number.

It is not a de Polignac number, because 11669401 - 2¹¹ = 11667353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11669401.

It is not an unprimeable number, because it can be changed into a prime (11669491) 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, 307071 + ... + 307108.

It is an arithmetic number, because the mean of its divisors is an integer number (3070900).

Almost surely, 2^11669401 is an apocalyptic number.

11669401 is the 2161-st centered pentagonal number.

It is an amenable number.

11669401 is a deficient number, since it is larger than the sum of its proper divisors (614199).

11669401 is an equidigital number, since it uses as much as digits as its factorization.

11669401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614198.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 11669401 is about 3416.0504972848. The cubic root of 11669401 is about 226.8207878676.

The spelling of 11669401 in words is "eleven million, six hundred sixty-nine thousand, four hundred one".