1228471 has 8 divisors (see below), whose sum is σ = 1313280. Its totient is φ = 1145088.

The previous prime is 1228459. The next prime is 1228489. The reversal of 1228471 is 1748221.

It is a happy number.

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 1228471 - 2¹⁵ = 1195703 is a prime.

It is a super-3 number, since 3×1228471³ = 5561807852276193333, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228441) 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, 1875 + ... + 2443.

It is an arithmetic number, because the mean of its divisors is an integer number (164160).

2^1228471 is an apocalyptic number.

1228471 is a deficient number, since it is larger than the sum of its proper divisors (84809).

1228471 is a wasteful number, since it uses less digits than its factorization.

1228471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713.

The product of its digits is 896, while the sum is 25.

The square root of 1228471 is about 1108.3641098484. The cubic root of 1228471 is about 107.0997119828.

The spelling of 1228471 in words is "one million, two hundred twenty-eight thousand, four hundred seventy-one".