1384861 has 2 divisors, whose sum is σ = 1384862. Its totient is φ = 1384860.

The previous prime is 1384849. The next prime is 1384879. The reversal of 1384861 is 1684831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 962361 + 422500 = 981^2 + 650^2 .

It is a cyclic number.

It is not a de Polignac number, because 1384861 - 2⁵ = 1384829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1384561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692430 + 692431.

It is an arithmetic number, because the mean of its divisors is an integer number (692431).

2^1384861 is an apocalyptic number.

It is an amenable number.

1384861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1384861 is an equidigital number, since it uses as much as digits as its factorization.

1384861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 31.

The square root of 1384861 is about 1176.8011726711. The cubic root of 1384861 is about 111.4641978533.

The spelling of 1384861 in words is "one million, three hundred eighty-four thousand, eight hundred sixty-one".