11228657 has 8 divisors (see below), whose sum is σ = 12340512. Its totient is φ = 10132000.

The previous prime is 11228627. The next prime is 11228663. The reversal of 11228657 is 75682211.

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 11228657 - 2⁶ = 11228593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11228617) 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, 2219 + ... + 5232.

It is an arithmetic number, because the mean of its divisors is an integer number (1542564).

Almost surely, 2^11228657 is an apocalyptic number.

It is an amenable number.

11228657 is a deficient number, since it is larger than the sum of its proper divisors (1111855).

11228657 is a wasteful number, since it uses less digits than its factorization.

11228657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7599.

The product of its digits is 6720, while the sum is 32.

The square root of 11228657 is about 3350.9188292168. The cubic root of 11228657 is about 223.9284489266.

It can be divided in two parts, 1122 and 8657, that added together give a palindrome (9779).

The spelling of 11228657 in words is "eleven million, two hundred twenty-eight thousand, six hundred fifty-seven".