1664088 has 16 divisors (see below), whose sum is σ = 4160280. Its totient is φ = 554688.

The previous prime is 1664083. The next prime is 1664101. The reversal of 1664088 is 8804661.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34645 + ... + 34692.

2^1664088 is an apocalyptic number.

It is an amenable number.

1664088 is an abundant number, since it is smaller than the sum of its proper divisors (2496192).

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

1664088 is a wasteful number, since it uses less digits than its factorization.

1664088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69346 (or 69342 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 1664088 is about 1289.9953488288. The cubic root of 1664088 is about 118.5019316390.

The spelling of 1664088 in words is "one million, six hundred sixty-four thousand, eighty-eight".