11964645 has 64 divisors (see below), whose sum is σ = 26542080. Its totient is φ = 4968000.

The previous prime is 11964613. The next prime is 11964647. The reversal of 11964645 is 54646911.

11964645 is a `hidden beast` number, since 1 + 1 + 9 + 6 + 4 + 645 = 666.

11964645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11964645 - 2⁵ = 11964613 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11964647) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9820 + ... + 10970.

It is an arithmetic number, because the mean of its divisors is an integer number (414720).

Almost surely, 2^11964645 is an apocalyptic number.

11964645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11964645 is an abundant number, since it is smaller than the sum of its proper divisors (14577435).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11964645 is a wasteful number, since it uses less digits than its factorization.

11964645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183 (or 1177 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 11964645 is about 3458.9947961800. The cubic root of 11964645 is about 228.7177863802.

Adding to 11964645 its sum of digits (36), we get a square (11964681 = 3459²).

The spelling of 11964645 in words is "eleven million, nine hundred sixty-four thousand, six hundred forty-five".