11641646 has 4 divisors (see below), whose sum is σ = 17462472. Its totient is φ = 5820822.

The previous prime is 11641639. The next prime is 11641681. The reversal of 11641646 is 64614611.

11641646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×11641646³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2910410 + ... + 2910413.

It is an arithmetic number, because the mean of its divisors is an integer number (4365618).

Almost surely, 2^11641646 is an apocalyptic number.

11641646 is a deficient number, since it is larger than the sum of its proper divisors (5820826).

11641646 is an equidigital number, since it uses as much as digits as its factorization.

11641646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5820825.

The product of its digits is 3456, while the sum is 29.

The square root of 11641646 is about 3411.9856388912. The cubic root of 11641646 is about 226.6408183712.

The spelling of 11641646 in words is "eleven million, six hundred forty-one thousand, six hundred forty-six".