1228877 has 4 divisors (see below), whose sum is σ = 1323420. Its totient is φ = 1134336.

The previous prime is 1228861. The next prime is 1228883. The reversal of 1228877 is 7788221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 343396 + 885481 = 586^2 + 941^2 .

It is a cyclic number.

It is not a de Polignac number, because 1228877 - 2⁴ = 1228861 is a prime.

It is a super-2 number, since 2×1228877² = 3020277362258, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 47252 + ... + 47277.

It is an arithmetic number, because the mean of its divisors is an integer number (330855).

2^1228877 is an apocalyptic number.

It is an amenable number.

1228877 is a deficient number, since it is larger than the sum of its proper divisors (94543).

1228877 is an equidigital number, since it uses as much as digits as its factorization.

1228877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94542.

The product of its digits is 12544, while the sum is 35.

The square root of 1228877 is about 1108.5472475271. The cubic root of 1228877 is about 107.1115092206. Note that the first 3 decimals are identical.

Adding to 1228877 its product of digits (12544), we get a palindrome (1241421).

The spelling of 1228877 in words is "one million, two hundred twenty-eight thousand, eight hundred seventy-seven".