1946389 has 2 divisors, whose sum is σ = 1946390. Its totient is φ = 1946388.

The previous prime is 1946377. The next prime is 1946401. The reversal of 1946389 is 9836491.

It is a balanced prime because it is at equal distance from previous prime (1946377) and next prime (1946401).

It can be written as a sum of positive squares in only one way, i.e., 980100 + 966289 = 990^2 + 983^2 .

It is a cyclic number.

It is not a de Polignac number, because 1946389 - 2¹³ = 1938197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1946369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973194 + 973195.

It is an arithmetic number, because the mean of its divisors is an integer number (973195).

2^1946389 is an apocalyptic number.

It is an amenable number.

1946389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1946389 is an equidigital number, since it uses as much as digits as its factorization.

1946389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The square root of 1946389 is about 1395.1304598495. The cubic root of 1946389 is about 124.8561331488.

The spelling of 1946389 in words is "one million, nine hundred forty-six thousand, three hundred eighty-nine".