1328959 has 4 divisors (see below), whose sum is σ = 1331280. Its totient is φ = 1326640.

The previous prime is 1328953. The next prime is 1328969. The reversal of 1328959 is 9598231.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1328959 - 2⁵ = 1328927 is a prime.

It is a super-2 number, since 2×1328959² = 3532264047362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387 + ... + 1675.

It is an arithmetic number, because the mean of its divisors is an integer number (332820).

2^1328959 is an apocalyptic number.

1328959 is a deficient number, since it is larger than the sum of its proper divisors (2321).

1328959 is a wasteful number, since it uses less digits than its factorization.

1328959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2320.

The product of its digits is 19440, while the sum is 37.

The square root of 1328959 is about 1152.8048403785. The cubic root of 1328959 is about 109.9437453406.

The spelling of 1328959 in words is "one million, three hundred twenty-eight thousand, nine hundred fifty-nine".