1228087 has 12 divisors (see below), whose sum is σ = 1452816. Its totient is φ = 1034880.

The previous prime is 1228021. The next prime is 1228091. The reversal of 1228087 is 7808221.

It is a de Polignac number, because none of the positive numbers 2^k-1228087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3303 + ... + 3655.

It is an arithmetic number, because the mean of its divisors is an integer number (121068).

2^1228087 is an apocalyptic number.

1228087 is a deficient number, since it is larger than the sum of its proper divisors (224729).

1228087 is an equidigital number, since it uses as much as digits as its factorization.

1228087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1228087 is about 1108.1908680367. The cubic root of 1228087 is about 107.0885516121.

The spelling of 1228087 in words is "one million, two hundred twenty-eight thousand, eighty-seven".