11640699 has 32 divisors (see below), whose sum is σ = 20874240. Its totient is φ = 6258816.

The previous prime is 11640689. The next prime is 11640719. The reversal of 11640699 is 99604611.

11640699 is a `hidden beast` number, since 1 + 1 + 640 + 6 + 9 + 9 = 666.

It is not a de Polignac number, because 11640699 - 2¹¹ = 11638651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11640619) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1402 + ... + 5024.

It is an arithmetic number, because the mean of its divisors is an integer number (652320).

Almost surely, 2^11640699 is an apocalyptic number.

11640699 is a deficient number, since it is larger than the sum of its proper divisors (9233541).

11640699 is a wasteful number, since it uses less digits than its factorization.

11640699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656 (or 3650 counting only the distinct ones).

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

The square root of 11640699 is about 3411.8468605727. The cubic root of 11640699 is about 226.6346727719.

The spelling of 11640699 in words is "eleven million, six hundred forty thousand, six hundred ninety-nine".