1228907 has 2 divisors, whose sum is σ = 1228908. Its totient is φ = 1228906.

The previous prime is 1228891. The next prime is 1228919. The reversal of 1228907 is 7098221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1228907 - 2⁴ = 1228891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1228907.

It is not a weakly prime, because it can be changed into another prime (1228937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614453 + 614454.

It is an arithmetic number, because the mean of its divisors is an integer number (614454).

2^1228907 is an apocalyptic number.

1228907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228907 is an equidigital number, since it uses as much as digits as its factorization.

1228907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1228907 is about 1108.5607786675. The cubic root of 1228907 is about 107.1123808346.

The spelling of 1228907 in words is "one million, two hundred twenty-eight thousand, nine hundred seven".