1074991 has 2 divisors, whose sum is σ = 1074992. Its totient is φ = 1074990.

The previous prime is 1074989. The next prime is 1075007. The reversal of 1074991 is 1994701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1074991 - 2¹ = 1074989 is a prime.

Together with 1074989, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1074901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537495 + 537496.

It is an arithmetic number, because the mean of its divisors is an integer number (537496).

2^1074991 is an apocalyptic number.

1074991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1074991 is an equidigital number, since it uses as much as digits as its factorization.

1074991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 1074991 is about 1036.8177274719. The cubic root of 1074991 is about 102.4396948461.

The spelling of 1074991 in words is "one million, seventy-four thousand, nine hundred ninety-one".