1384661 has 2 divisors, whose sum is σ = 1384662. Its totient is φ = 1384660.

The previous prime is 1384631. The next prime is 1384673. The reversal of 1384661 is 1664831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1060900 + 323761 = 1030^2 + 569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1384661 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1384601) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692330 + 692331.

It is an arithmetic number, because the mean of its divisors is an integer number (692331).

2^1384661 is an apocalyptic number.

It is an amenable number.

1384661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1384661 is an equidigital number, since it uses as much as digits as its factorization.

1384661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 1384661 is about 1176.7161934808. The cubic root of 1384661 is about 111.4588317521.

The spelling of 1384661 in words is "one million, three hundred eighty-four thousand, six hundred sixty-one".