1946429 has 2 divisors, whose sum is σ = 1946430. Its totient is φ = 1946428.

The previous prime is 1946407. The next prime is 1946443. The reversal of 1946429 is 9246491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1435204 + 511225 = 1198^2 + 715^2 .

It is an emirp because it is prime and its reverse (9246491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1946429 - 2⁸ = 1946173 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1946489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973214 + 973215.

It is an arithmetic number, because the mean of its divisors is an integer number (973215).

2^1946429 is an apocalyptic number.

It is an amenable number.

1946429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1946429 is an equidigital number, since it uses as much as digits as its factorization.

1946429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 1946429 is about 1395.1447953528. The cubic root of 1946429 is about 124.8569884440.

The spelling of 1946429 in words is "one million, nine hundred forty-six thousand, four hundred twenty-nine".