1959664 has 20 divisors (see below), whose sum is σ = 4339504. Its totient is φ = 839808.

The previous prime is 1959649. The next prime is 1959673. The reversal of 1959664 is 4669591.

It is a d-powerful number, because it can be written as 1 + 9 + 5 + 9² + 6⁷ + 6⁸ + 4² .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8637 + ... + 8860.

2^1959664 is an apocalyptic number.

1959664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1959664 is an abundant number, since it is smaller than the sum of its proper divisors (2379840).

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

1959664 is a wasteful number, since it uses less digits than its factorization.

1959664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17512 (or 17506 counting only the distinct ones).

The product of its digits is 58320, while the sum is 40.

The square root of 1959664 is about 1399.8799948567. The cubic root of 1959664 is about 125.1393432766.

The spelling of 1959664 in words is "one million, nine hundred fifty-nine thousand, six hundred sixty-four".