1896321 has 16 divisors (see below), whose sum is σ = 2931584. Its totient is φ = 1067904.

The previous prime is 1896317. The next prime is 1896331. The reversal of 1896321 is 1236981.

It is not a de Polignac number, because 1896321 - 2² = 1896317 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1896331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 915 + ... + 2151.

It is an arithmetic number, because the mean of its divisors is an integer number (183224).

2^1896321 is an apocalyptic number.

It is an amenable number.

1896321 is a deficient number, since it is larger than the sum of its proper divisors (1035263).

1896321 is a wasteful number, since it uses less digits than its factorization.

1896321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320.

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

The square root of 1896321 is about 1377.0697150108. The cubic root of 1896321 is about 123.7762397169.

The spelling of 1896321 in words is "one million, eight hundred ninety-six thousand, three hundred twenty-one".