1971896 has 16 divisors (see below), whose sum is σ = 3892200. Its totient is φ = 933984.

The previous prime is 1971889. The next prime is 1971901. The reversal of 1971896 is 6981791.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 6335 + ... + 6638.

2^1971896 is an apocalyptic number.

It is an amenable number.

1971896 is a deficient number, since it is larger than the sum of its proper divisors (1920304).

1971896 is a wasteful number, since it uses less digits than its factorization.

1971896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12998 (or 12994 counting only the distinct ones).

The product of its digits is 27216, while the sum is 41.

The square root of 1971896 is about 1404.2421443611. The cubic root of 1971896 is about 125.3991719372.

The spelling of 1971896 in words is "one million, nine hundred seventy-one thousand, eight hundred ninety-six".