1896897 has 4 divisors (see below), whose sum is σ = 2529200. Its totient is φ = 1264596.

The previous prime is 1896893. The next prime is 1896899. The reversal of 1896897 is 7986981.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1896897 - 2² = 1896893 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1896893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316147 + ... + 316152.

It is an arithmetic number, because the mean of its divisors is an integer number (632300).

2^1896897 is an apocalyptic number.

It is an amenable number.

1896897 is a deficient number, since it is larger than the sum of its proper divisors (632303).

1896897 is an equidigital number, since it uses as much as digits as its factorization.

1896897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632302.

The product of its digits is 217728, while the sum is 48.

The square root of 1896897 is about 1377.2788388703. The cubic root of 1896897 is about 123.7887706292.

The spelling of 1896897 in words is "one million, eight hundred ninety-six thousand, eight hundred ninety-seven".