1321896 has 16 divisors (see below), whose sum is σ = 3304800. Its totient is φ = 440624.

The previous prime is 1321891. The next prime is 1321897. The reversal of 1321896 is 6981231.

It is not an unprimeable number, because it can be changed into a prime (1321891) 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, 27516 + ... + 27563.

It is an arithmetic number, because the mean of its divisors is an integer number (206550).

2^1321896 is an apocalyptic number.

It is an amenable number.

1321896 is an abundant number, since it is smaller than the sum of its proper divisors (1982904).

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

1321896 is a wasteful number, since it uses less digits than its factorization.

1321896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55088 (or 55084 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 1321896 is about 1149.7373613134. The cubic root of 1321896 is about 109.7486271001.

The spelling of 1321896 in words is "one million, three hundred twenty-one thousand, eight hundred ninety-six".