1128979 has 2 divisors, whose sum is σ = 1128980. Its totient is φ = 1128978.

The previous prime is 1128977. The next prime is 1128997. The reversal of 1128979 is 9798211.

Together with next prime (1128997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (9798211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1128979 - 2¹ = 1128977 is a prime.

Together with 1128977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1128977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564489 + 564490.

It is an arithmetic number, because the mean of its divisors is an integer number (564490).

2^1128979 is an apocalyptic number.

1128979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128979 is an equidigital number, since it uses as much as digits as its factorization.

1128979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 37.

The square root of 1128979 is about 1062.5342347426. The cubic root of 1128979 is about 104.1266639643.

The spelling of 1128979 in words is "one million, one hundred twenty-eight thousand, nine hundred seventy-nine".