1289007 has 8 divisors (see below), whose sum is σ = 1909680. Its totient is φ = 859320.

The previous prime is 1289003. The next prime is 1289009. The reversal of 1289007 is 7009821.

It is not a de Polignac number, because 1289007 - 2² = 1289003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 47741 = 1289007 / (1 + 2 + 8 + 9 + 0 + 0 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1289003) 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 7 ways as a sum of consecutive naturals, for example, 23844 + ... + 23897.

It is an arithmetic number, because the mean of its divisors is an integer number (238710).

2^1289007 is an apocalyptic number.

1289007 is a deficient number, since it is larger than the sum of its proper divisors (620673).

1289007 is an equidigital number, since it uses as much as digits as its factorization.

1289007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47750 (or 47744 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1289007 is about 1135.3444411279. The cubic root of 1289007 is about 108.8307842082.

The spelling of 1289007 in words is "one million, two hundred eighty-nine thousand, seven".