1060991 has 2 divisors, whose sum is σ = 1060992. Its totient is φ = 1060990.

The previous prime is 1060981. The next prime is 1060993. The reversal of 1060991 is 1990601.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1060991 is a prime.

It is a super-2 number, since 2×1060991² = 2251403804162, which contains 22 as substring.

Together with 1060993, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1060991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1060993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530495 + 530496.

It is an arithmetic number, because the mean of its divisors is an integer number (530496).

2^1060991 is an apocalyptic number.

1060991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1060991 is an equidigital number, since it uses as much as digits as its factorization.

1060991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 1060991 is about 1030.0441738100. The cubic root of 1060991 is about 101.9930470719.

The spelling of 1060991 in words is "one million, sixty thousand, nine hundred ninety-one".