1766056 has 8 divisors (see below), whose sum is σ = 3311370. Its totient is φ = 883024.

The previous prime is 1766041. The next prime is 1766057. The reversal of 1766056 is 6506671.

It can be written as a sum of positive squares in only one way, i.e., 1322500 + 443556 = 1150^2 + 666^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1766057) 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, 110371 + ... + 110386.

2^1766056 is an apocalyptic number.

It is an amenable number.

1766056 is a deficient number, since it is larger than the sum of its proper divisors (1545314).

1766056 is a wasteful number, since it uses less digits than its factorization.

1766056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220763 (or 220759 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 1766056 is about 1328.9303969734. The cubic root of 1766056 is about 120.8745369853.

The spelling of 1766056 in words is "one million, seven hundred sixty-six thousand, fifty-six".