1388029 has 2 divisors, whose sum is σ = 1388030. Its totient is φ = 1388028.

The previous prime is 1388021. The next prime is 1388041. The reversal of 1388029 is 9208831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1375929 + 12100 = 1173^2 + 110^2 .

It is an emirp because it is prime and its reverse (9208831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1388029 - 2³ = 1388021 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 (1388021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694014 + 694015.

It is an arithmetic number, because the mean of its divisors is an integer number (694015).

2^1388029 is an apocalyptic number.

It is an amenable number.

1388029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388029 is an equidigital number, since it uses as much as digits as its factorization.

1388029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1388029 is about 1178.1464255346. The cubic root of 1388029 is about 111.5491280753.

The spelling of 1388029 in words is "one million, three hundred eighty-eight thousand, twenty-nine".