1384387 has 2 divisors, whose sum is σ = 1384388. Its totient is φ = 1384386.

The previous prime is 1384351. The next prime is 1384391. The reversal of 1384387 is 7834831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1384387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1384337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692193 + 692194.

It is an arithmetic number, because the mean of its divisors is an integer number (692194).

2^1384387 is an apocalyptic number.

1384387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1384387 is an equidigital number, since it uses as much as digits as its factorization.

1384387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 34.

The square root of 1384387 is about 1176.5997620262. The cubic root of 1384387 is about 111.4514793545.

It can be divided in two parts, 1384 and 387, that added together give a palindrome (1771).

The spelling of 1384387 in words is "one million, three hundred eighty-four thousand, three hundred eighty-seven".