1944377 has 2 divisors, whose sum is σ = 1944378. Its totient is φ = 1944376.

The previous prime is 1944373. The next prime is 1944379. The reversal of 1944377 is 7734491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1731856 + 212521 = 1316^2 + 461^2 .

It is a cyclic number.

It is not a de Polignac number, because 1944377 - 2² = 1944373 is a prime.

Together with 1944379, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1944373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972188 + 972189.

It is an arithmetic number, because the mean of its divisors is an integer number (972189).

2^1944377 is an apocalyptic number.

It is an amenable number.

1944377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1944377 is an equidigital number, since it uses as much as digits as its factorization.

1944377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 35.

The square root of 1944377 is about 1394.4091938882. The cubic root of 1944377 is about 124.8130966765.

The spelling of 1944377 in words is "one million, nine hundred forty-four thousand, three hundred seventy-seven".