1632664 has 16 divisors (see below), whose sum is σ = 3339720. Its totient is φ = 742080.

The previous prime is 1632649. The next prime is 1632679. The reversal of 1632664 is 4662361.

It is an interprime number because it is at equal distance from previous prime (1632649) and next prime (1632679).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9189 + ... + 9364.

2^1632664 is an apocalyptic number.

It is an amenable number.

1632664 is an abundant number, since it is smaller than the sum of its proper divisors (1707056).

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

1632664 is a wasteful number, since it uses less digits than its factorization.

1632664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18570 (or 18566 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 1632664 is about 1277.7574104657. The cubic root of 1632664 is about 117.7512715426.

The spelling of 1632664 in words is "one million, six hundred thirty-two thousand, six hundred sixty-four".