1056739 has 2 divisors, whose sum is σ = 1056740. Its totient is φ = 1056738.

The previous prime is 1056721. The next prime is 1056773. The reversal of 1056739 is 9376501.

It is a weak prime.

It is an emirp because it is prime and its reverse (9376501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1056739 - 2⁵ = 1056707 is a prime.

It is a super-2 number, since 2×1056739² = 2233394628242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1056739.

It is not a weakly prime, because it can be changed into another prime (1056719) 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, 528369 + 528370.

It is an arithmetic number, because the mean of its divisors is an integer number (528370).

2^1056739 is an apocalyptic number.

1056739 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056739 is an equidigital number, since it uses as much as digits as its factorization.

1056739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 1056739 is about 1027.9781126075. The cubic root of 1056739 is about 101.8566164277.

The spelling of 1056739 in words is "one million, fifty-six thousand, seven hundred thirty-nine".