11664890 has 32 divisors (see below), whose sum is σ = 22628160. Its totient is φ = 4313344.

The previous prime is 11664881. The next prime is 11664899. The reversal of 11664890 is 9846611.

It is an interprime number because it is at equal distance from previous prime (11664881) and next prime (11664899).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11664890.

It is not an unprimeable number, because it can be changed into a prime (11664899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9449 + ... + 10611.

It is an arithmetic number, because the mean of its divisors is an integer number (707130).

Almost surely, 2^11664890 is an apocalyptic number.

11664890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11664890 is a deficient number, since it is larger than the sum of its proper divisors (10963270).

11664890 is a wasteful number, since it uses less digits than its factorization.

11664890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 11664890 is about 3415.3901680482. The cubic root of 11664890 is about 226.7915569914.

The spelling of 11664890 in words is "eleven million, six hundred sixty-four thousand, eight hundred ninety".