1027664 has 20 divisors (see below), whose sum is σ = 2172480. Its totient is φ = 467040.

The previous prime is 1027643. The next prime is 1027679. The reversal of 1027664 is 4667201.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2744 + ... + 3095.

It is an arithmetic number, because the mean of its divisors is an integer number (108624).

2^1027664 is an apocalyptic number.

It is an amenable number.

1027664 is an abundant number, since it is smaller than the sum of its proper divisors (1144816).

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

1027664 is a wasteful number, since it uses less digits than its factorization.

1027664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5858 (or 5852 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1027664 is about 1013.7376386423. The cubic root of 1027664 is about 100.9137583584.

The spelling of 1027664 in words is "one million, twenty-seven thousand, six hundred sixty-four".