1067557 has 2 divisors, whose sum is σ = 1067558. Its totient is φ = 1067556.

The previous prime is 1067551. The next prime is 1067567. The reversal of 1067557 is 7557601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 690561 + 376996 = 831^2 + 614^2 .

It is an emirp because it is prime and its reverse (7557601) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1067557 is a prime.

It is a super-2 number, since 2×1067557² = 2279355896498, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1067551) 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, 533778 + 533779.

It is an arithmetic number, because the mean of its divisors is an integer number (533779).

2^1067557 is an apocalyptic number.

It is an amenable number.

1067557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1067557 is an equidigital number, since it uses as much as digits as its factorization.

1067557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 1067557 is about 1033.2264998537. The cubic root of 1067557 is about 102.2030110313.

The spelling of 1067557 in words is "one million, sixty-seven thousand, five hundred fifty-seven".