1656064 has 18 divisors (see below), whose sum is σ = 3306170. Its totient is φ = 827904.

The previous prime is 1656049. The next prime is 1656073. The reversal of 1656064 is 4606561.

It can be written as a sum of positive squares in only one way, i.e., 1016064 + 640000 = 1008^2 + 800^2 .

It is an Ulam number.

It is a zygodrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2979 + ... + 3490.

2^1656064 is an apocalyptic number.

It is an amenable number.

1656064 is a deficient number, since it is larger than the sum of its proper divisors (1650106).

1656064 is an frugal number, since it uses more digits than its factorization.

1656064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6485 (or 6471 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1656064 is about 1286.8815019263. The cubic root of 1656064 is about 118.3111580920.

The spelling of 1656064 in words is "one million, six hundred fifty-six thousand, sixty-four".