11223861 has 8 divisors (see below), whose sum is σ = 16325664. Its totient is φ = 6802320.

The previous prime is 11223857. The next prime is 11223869. The reversal of 11223861 is 16832211.

11223861 is digitally balanced in base 2 and base 4, because in such bases 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 not a de Polignac number, because 11223861 - 2² = 11223857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223869) 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, 170026 + ... + 170091.

It is an arithmetic number, because the mean of its divisors is an integer number (2040708).

Almost surely, 2^11223861 is an apocalyptic number.

11223861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11223861 is a deficient number, since it is larger than the sum of its proper divisors (5101803).

11223861 is a wasteful number, since it uses less digits than its factorization.

11223861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340131.

The product of its digits is 576, while the sum is 24.

The square root of 11223861 is about 3350.2031281700. The cubic root of 11223861 is about 223.8965628402.

The spelling of 11223861 in words is "eleven million, two hundred twenty-three thousand, eight hundred sixty-one".