1662206 has 16 divisors (see below), whose sum is σ = 3069024. Its totient is φ = 657504.

The previous prime is 1662191. The next prime is 1662211. The reversal of 1662206 is 6022661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4385 + ... + 4748.

It is an arithmetic number, because the mean of its divisors is an integer number (191814).

2^1662206 is an apocalyptic number.

1662206 is a deficient number, since it is larger than the sum of its proper divisors (1406818).

1662206 is a wasteful number, since it uses less digits than its factorization.

1662206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9155.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1662206 is about 1289.2656824720. The cubic root of 1662206 is about 118.4572415418.

Adding to 1662206 its reverse (6022661), we get a palindrome (7684867).

The spelling of 1662206 in words is "one million, six hundred sixty-two thousand, two hundred six".