1073664 has 60 divisors (see below), whose sum is σ = 3111966. Its totient is φ = 356352.

The previous prime is 1073651. The next prime is 1073687. The reversal of 1073664 is 4663701.

It can be written as a sum of positive squares in only one way, i.e., 1016064 + 57600 = 1008^2 + 240^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4492 + ... + 4724.

2^1073664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1073664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1555983).

1073664 is an abundant number, since it is smaller than the sum of its proper divisors (2038302).

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

1073664 is an equidigital number, since it uses as much as digits as its factorization.

1073664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 1073664 is about 1036.1775909563. The cubic root of 1073664 is about 102.3975259819.

The spelling of 1073664 in words is "one million, seventy-three thousand, six hundred sixty-four".