1944791 has 2 divisors, whose sum is σ = 1944792. Its totient is φ = 1944790.

The previous prime is 1944781. The next prime is 1944797. The reversal of 1944791 is 1974491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1944791 - 2⁶ = 1944727 is a prime.

It is a Chen 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 (1944797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972395 + 972396.

It is an arithmetic number, because the mean of its divisors is an integer number (972396).

2^1944791 is an apocalyptic number.

1944791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1944791 is an equidigital number, since it uses as much as digits as its factorization.

1944791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 35.

The square root of 1944791 is about 1394.5576359549. The cubic root of 1944791 is about 124.8219545189.

The spelling of 1944791 in words is "one million, nine hundred forty-four thousand, seven hundred ninety-one".