1058861 has 2 divisors, whose sum is σ = 1058862. Its totient is φ = 1058860.

The previous prime is 1058839. The next prime is 1058891. The reversal of 1058861 is 1688501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 609961 + 448900 = 781^2 + 670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1058861 is a prime.

It is a super-2 number, since 2×1058861² = 2242373234642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1058821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 529430 + 529431.

It is an arithmetic number, because the mean of its divisors is an integer number (529431).

2^1058861 is an apocalyptic number.

It is an amenable number.

1058861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1058861 is an equidigital number, since it uses as much as digits as its factorization.

1058861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 1058861 is about 1029.0097181271. The cubic root of 1058861 is about 101.9247490593.

The spelling of 1058861 in words is "one million, fifty-eight thousand, eight hundred sixty-one".