11823643 has 8 divisors (see below), whose sum is σ = 13403600. Its totient is φ = 10339488.

The previous prime is 11823641. The next prime is 11823671. The reversal of 11823643 is 34632811.

11823643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11823643 - 2¹ = 11823641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11823641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23688 + ... + 24181.

It is an arithmetic number, because the mean of its divisors is an integer number (1675450).

Almost surely, 2^11823643 is an apocalyptic number.

11823643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11823643 is a deficient number, since it is larger than the sum of its proper divisors (1579957).

11823643 is a wasteful number, since it uses less digits than its factorization.

11823643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47901.

The product of its digits is 3456, while the sum is 28.

The square root of 11823643 is about 3438.5524570668. The cubic root of 11823643 is about 227.8157624713.

The spelling of 11823643 in words is "eleven million, eight hundred twenty-three thousand, six hundred forty-three".