2271897 has 24 divisors (see below), whose sum is σ = 3594240. Its totient is φ = 1376640.

The previous prime is 2271883. The next prime is 2271901. The reversal of 2271897 is 7981722.

It is not a de Polignac number, because 2271897 - 2⁴ = 2271881 is a prime.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (2271817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4504 + ... + 4982.

It is an arithmetic number, because the mean of its divisors is an integer number (149760).

2^2271897 is an apocalyptic number.

It is an amenable number.

2271897 is a deficient number, since it is larger than the sum of its proper divisors (1322343).

2271897 is a wasteful number, since it uses less digits than its factorization.

2271897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 530 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 2271897 is about 1507.2813274236. The cubic root of 2271897 is about 131.4607823989.

The spelling of 2271897 in words is "two million, two hundred seventy-one thousand, eight hundred ninety-seven".