1389007 has 2 divisors, whose sum is σ = 1389008. Its totient is φ = 1389006.

The previous prime is 1389001. The next prime is 1389083. The reversal of 1389007 is 7009831.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1389007 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1389001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694503 + 694504.

It is an arithmetic number, because the mean of its divisors is an integer number (694504).

2^1389007 is an apocalyptic number.

1389007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389007 is an equidigital number, since it uses as much as digits as its factorization.

1389007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 1389007 is about 1178.5614112128. The cubic root of 1389007 is about 111.5753209562.

The spelling of 1389007 in words is "one million, three hundred eighty-nine thousand, seven".