1940047 has 2 divisors, whose sum is σ = 1940048. Its totient is φ = 1940046.

The previous prime is 1940041. The next prime is 1940053. The reversal of 1940047 is 7400491.

It is a balanced prime because it is at equal distance from previous prime (1940041) and next prime (1940053).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1940047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1940041) 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, 970023 + 970024.

It is an arithmetic number, because the mean of its divisors is an integer number (970024).

2^1940047 is an apocalyptic number.

1940047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1940047 is an equidigital number, since it uses as much as digits as its factorization.

1940047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1940047 is about 1392.8556996330. The cubic root of 1940047 is about 124.7203776237.

The spelling of 1940047 in words is "one million, nine hundred forty thousand, forty-seven".