1668596 has 12 divisors (see below), whose sum is σ = 2939748. Its totient is φ = 828672.

The previous prime is 1668593. The next prime is 1668617. The reversal of 1668596 is 6958661.

It can be written as a sum of positive squares in 2 ways, for example, as 784996 + 883600 = 886^2 + 940^2 .

It is a super-2 number, since 2×1668596² = 5568425222432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701 + ... + 1956.

It is an arithmetic number, because the mean of its divisors is an integer number (244979).

2^1668596 is an apocalyptic number.

It is an amenable number.

1668596 is a deficient number, since it is larger than the sum of its proper divisors (1271152).

1668596 is a wasteful number, since it uses less digits than its factorization.

1668596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818 (or 2816 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 1668596 is about 1291.7414602001. The cubic root of 1668596 is about 118.6088420599.

The spelling of 1668596 in words is "one million, six hundred sixty-eight thousand, five hundred ninety-six".