1388077 has 2 divisors, whose sum is σ = 1388078. Its totient is φ = 1388076.

The previous prime is 1388069. The next prime is 1388081. The reversal of 1388077 is 7708831.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1378276 + 9801 = 1174^2 + 99^2 .

It is a cyclic number.

It is not a de Polignac number, because 1388077 - 2³ = 1388069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1388477) 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 as a sum of consecutive naturals, namely, 694038 + 694039.

It is an arithmetic number, because the mean of its divisors is an integer number (694039).

2^1388077 is an apocalyptic number.

It is an amenable number.

1388077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388077 is an equidigital number, since it uses as much as digits as its factorization.

1388077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 1388077 is about 1178.1667963408. The cubic root of 1388077 is about 111.5504139025.

The spelling of 1388077 in words is "one million, three hundred eighty-eight thousand, seventy-seven".