11964609 has 12 divisors (see below), whose sum is σ = 17312256. Its totient is φ = 7962552.

The previous prime is 11964607. The next prime is 11964611. The reversal of 11964609 is 90646911.

11964609 is a `hidden beast` number, since 1 + 1 + 9 + 646 + 0 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (11964607) and next prime (11964611).

It is not a de Polignac number, because 11964609 - 2¹ = 11964607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11964607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9172 + ... + 10394.

It is an arithmetic number, because the mean of its divisors is an integer number (1442688).

Almost surely, 2^11964609 is an apocalyptic number.

It is an amenable number.

11964609 is a deficient number, since it is larger than the sum of its proper divisors (5347647).

11964609 is a wasteful number, since it uses less digits than its factorization.

11964609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316 (or 2313 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 11964609 is about 3458.9895923521. The cubic root of 11964609 is about 228.7175569863.

The spelling of 11964609 in words is "eleven million, nine hundred sixty-four thousand, six hundred nine".