1228857 has 16 divisors (see below), whose sum is σ = 1889280. Its totient is φ = 695952.

The previous prime is 1228849. The next prime is 1228861. The reversal of 1228857 is 7588221.

It is not a de Polignac number, because 1228857 - 2³ = 1228849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1228837) 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, 3244 + ... + 3602.

It is an arithmetic number, because the mean of its divisors is an integer number (118080).

2^1228857 is an apocalyptic number.

It is an amenable number.

1228857 is a deficient number, since it is larger than the sum of its proper divisors (660423).

1228857 is a wasteful number, since it uses less digits than its factorization.

1228857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532.

The product of its digits is 8960, while the sum is 33.

The square root of 1228857 is about 1108.5382266751. The cubic root of 1228857 is about 107.1109281368.

The spelling of 1228857 in words is "one million, two hundred twenty-eight thousand, eight hundred fifty-seven".