1897896 has 128 divisors (see below), whose sum is σ = 6451200. Its totient is φ = 449280.

The previous prime is 1897871. The next prime is 1897939. The reversal of 1897896 is 6987981.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23985 + ... + 24063.

It is an arithmetic number, because the mean of its divisors is an integer number (50400).

2^1897896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1897896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3225600).

1897896 is an abundant number, since it is smaller than the sum of its proper divisors (4553304).

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

1897896 is a wasteful number, since it uses less digits than its factorization.

1897896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 115 counting only the distinct ones).

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

The square root of 1897896 is about 1377.6414627907. The cubic root of 1897896 is about 123.8104979166.

The spelling of 1897896 in words is "one million, eight hundred ninety-seven thousand, eight hundred ninety-six".