11223247 has 16 divisors (see below), whose sum is σ = 13953600. Its totient is φ = 8805888.

The previous prime is 11223181. The next prime is 11223253. The reversal of 11223247 is 74232211.

11223247 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11223247 - 2²³ = 2834639 is a prime.

It is a super-2 number, since 2×11223247² = 251922546446018, which contains 22 as substring.

11223247 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3129 + ... + 5677.

It is an arithmetic number, because the mean of its divisors is an integer number (872100).

Almost surely, 2^11223247 is an apocalyptic number.

11223247 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11223247 is a deficient number, since it is larger than the sum of its proper divisors (2730353).

11223247 is a wasteful number, since it uses less digits than its factorization.

11223247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610.

The product of its digits is 672, while the sum is 22.

The square root of 11223247 is about 3350.1114906821. Note that the first 3 decimals coincide. The cubic root of 11223247 is about 223.8924800207.

Adding to 11223247 its reverse (74232211), we get a palindrome (85455458).

The spelling of 11223247 in words is "eleven million, two hundred twenty-three thousand, two hundred forty-seven".