11646890 has 8 divisors (see below), whose sum is σ = 20964420. Its totient is φ = 4658752.

The previous prime is 11646889. The next prime is 11646907. The reversal of 11646890 is 9864611.

It can be written as a sum of positive squares in 2 ways, for example, as 11566801 + 80089 = 3401^2 + 283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11646890.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582335 + ... + 582354.

Almost surely, 2^11646890 is an apocalyptic number.

11646890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11646890 is a deficient number, since it is larger than the sum of its proper divisors (9317530).

11646890 is a wasteful number, since it uses less digits than its factorization.

11646890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164696.

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

The square root of 11646890 is about 3412.7540198497. The cubic root of 11646890 is about 226.6748435151.

The spelling of 11646890 in words is "eleven million, six hundred forty-six thousand, eight hundred ninety".