1389011 has 6 divisors (see below), whose sum is σ = 1504260. Its totient is φ = 1282008.

The previous prime is 1389007. The next prime is 1389083. The reversal of 1389011 is 1109831.

It is not a de Polignac number, because 1389011 - 2² = 1389007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1389001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3941 + ... + 4278.

It is an arithmetic number, because the mean of its divisors is an integer number (250710).

2^1389011 is an apocalyptic number.

1389011 is a deficient number, since it is larger than the sum of its proper divisors (115249).

1389011 is an equidigital number, since it uses as much as digits as its factorization.

1389011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8245 (or 8232 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 1389011 is about 1178.5631081957. The cubic root of 1389011 is about 111.5754280593.

The spelling of 1389011 in words is "one million, three hundred eighty-nine thousand, eleven".