1389097 has 2 divisors, whose sum is σ = 1389098. Its totient is φ = 1389096.

The previous prime is 1389083. The next prime is 1389107. The reversal of 1389097 is 7909831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1245456 + 143641 = 1116^2 + 379^2 .

It is a cyclic number.

It is not a de Polignac number, because 1389097 - 2⁷ = 1388969 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1389007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694548 + 694549.

It is an arithmetic number, because the mean of its divisors is an integer number (694549).

2^1389097 is an apocalyptic number.

It is an amenable number.

1389097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389097 is an equidigital number, since it uses as much as digits as its factorization.

1389097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 1389097 is about 1178.5995927371. The cubic root of 1389097 is about 111.5777307261.

The spelling of 1389097 in words is "one million, three hundred eighty-nine thousand, ninety-seven".