1228967 has 4 divisors (see below), whose sum is σ = 1249176. Its totient is φ = 1208760.

The previous prime is 1228963. The next prime is 1228987. The reversal of 1228967 is 7698221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7698221 = 1553 ⋅4957.

It is a cyclic number.

It is not a de Polignac number, because 1228967 - 2² = 1228963 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 (1228961) 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, 10013 + ... + 10134.

It is an arithmetic number, because the mean of its divisors is an integer number (312294).

2^1228967 is an apocalyptic number.

1228967 is a deficient number, since it is larger than the sum of its proper divisors (20209).

1228967 is an equidigital number, since it uses as much as digits as its factorization.

1228967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20208.

The product of its digits is 12096, while the sum is 35.

The square root of 1228967 is about 1108.5878404529. The cubic root of 1228967 is about 107.1141240200.

The spelling of 1228967 in words is "one million, two hundred twenty-eight thousand, nine hundred sixty-seven".