1609662 has 32 divisors (see below), whose sum is σ = 3497472. Its totient is φ = 491904.

The previous prime is 1609631. The next prime is 1609667. The reversal of 1609662 is 2669061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1609667) 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 15 ways as a sum of consecutive naturals, for example, 4203 + ... + 4569.

It is an arithmetic number, because the mean of its divisors is an integer number (109296).

2^1609662 is an apocalyptic number.

1609662 is an abundant number, since it is smaller than the sum of its proper divisors (1887810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1609662 is a wasteful number, since it uses less digits than its factorization.

1609662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1609662 is about 1268.7245563951. The cubic root of 1609662 is about 117.1956693683.

The spelling of 1609662 in words is "one million, six hundred nine thousand, six hundred sixty-two".