1968897 has 32 divisors (see below), whose sum is σ = 3214080. Its totient is φ = 1048320.

The previous prime is 1968871. The next prime is 1968899. The reversal of 1968897 is 7988691.

It is a happy number.

It is not a de Polignac number, because 1968897 - 2⁸ = 1968641 is a prime.

1968897 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1968899) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32247 + ... + 32307.

It is an arithmetic number, because the mean of its divisors is an integer number (100440).

2^1968897 is an apocalyptic number.

It is an amenable number.

1968897 is a deficient number, since it is larger than the sum of its proper divisors (1245183).

1968897 is a wasteful number, since it uses less digits than its factorization.

1968897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153.

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

The square root of 1968897 is about 1403.1739022659. The cubic root of 1968897 is about 125.3355676819.

The spelling of 1968897 in words is "one million, nine hundred sixty-eight thousand, eight hundred ninety-seven".