1662622 has 12 divisors (see below), whose sum is σ = 2701080. Its totient is φ = 767208.

The previous prime is 1662611. The next prime is 1662629. The reversal of 1662622 is 2262661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1662629) 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 5 ways as a sum of consecutive naturals, for example, 2122 + ... + 2797.

It is an arithmetic number, because the mean of its divisors is an integer number (225090).

2^1662622 is an apocalyptic number.

1662622 is a deficient number, since it is larger than the sum of its proper divisors (1038458).

1662622 is a wasteful number, since it uses less digits than its factorization.

1662622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4947 (or 4934 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 1662622 is about 1289.4270045257. The cubic root of 1662622 is about 118.4671228085.

The spelling of 1662622 in words is "one million, six hundred sixty-two thousand, six hundred twenty-two".