11965801 has 4 divisors (see below), whose sum is σ = 12595600. Its totient is φ = 11336004.

The previous prime is 11965781. The next prime is 11965817. The reversal of 11965801 is 10856911.

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 a cyclic number.

It is not a de Polignac number, because 11965801 - 2⁵ = 11965769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11965831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314871 + ... + 314908.

It is an arithmetic number, because the mean of its divisors is an integer number (3148900).

Almost surely, 2^11965801 is an apocalyptic number.

It is an amenable number.

11965801 is a deficient number, since it is larger than the sum of its proper divisors (629799).

11965801 is an equidigital number, since it uses as much as digits as its factorization.

11965801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629798.

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 11965801 is about 3459.1618927133. The cubic root of 11965801 is about 228.7251522275.

The spelling of 11965801 in words is "eleven million, nine hundred sixty-five thousand, eight hundred one".