2239897 has 4 divisors (see below), whose sum is σ = 2443536. Its totient is φ = 2036260.

The previous prime is 2239889. The next prime is 2239933. The reversal of 2239897 is 7989322.

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 a cyclic number.

It is not a de Polignac number, because 2239897 - 2³ = 2239889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2239807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101803 + ... + 101824.

It is an arithmetic number, because the mean of its divisors is an integer number (610884).

2^2239897 is an apocalyptic number.

It is an amenable number.

2239897 is a deficient number, since it is larger than the sum of its proper divisors (203639).

2239897 is a wasteful number, since it uses less digits than its factorization.

2239897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203638.

The product of its digits is 54432, while the sum is 40.

The square root of 2239897 is about 1496.6285444291. The cubic root of 2239897 is about 130.8406469016.

It can be divided in two parts, 2239 and 897, that added together give a square (3136 = 56²).

The spelling of 2239897 in words is "two million, two hundred thirty-nine thousand, eight hundred ninety-seven".