1388411 has 2 divisors, whose sum is σ = 1388412. Its totient is φ = 1388410.

The previous prime is 1388393. The next prime is 1388419. The reversal of 1388411 is 1148831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1388411 - 2¹⁴ = 1372027 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1388419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694205 + 694206.

It is an arithmetic number, because the mean of its divisors is an integer number (694206).

2^1388411 is an apocalyptic number.

1388411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388411 is an equidigital number, since it uses as much as digits as its factorization.

1388411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 26.

The square root of 1388411 is about 1178.3085334495. The cubic root of 1388411 is about 111.5593602963.

The spelling of 1388411 in words is "one million, three hundred eighty-eight thousand, four hundred eleven".