2295821 has 8 divisors (see below), whose sum is σ = 2528064. Its totient is φ = 2067520.

The previous prime is 2295817. The next prime is 2295823. The reversal of 2295821 is 1285922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2295821 - 2² = 2295817 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2295823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320 + ... + 2166.

It is an arithmetic number, because the mean of its divisors is an integer number (316008).

2^2295821 is an apocalyptic number.

It is an amenable number.

2295821 is a deficient number, since it is larger than the sum of its proper divisors (232243).

2295821 is a wasteful number, since it uses less digits than its factorization.

2295821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971.

The product of its digits is 2880, while the sum is 29.

The square root of 2295821 is about 1515.1966869024. The cubic root of 2295821 is about 131.9206172532.

The spelling of 2295821 in words is "two million, two hundred ninety-five thousand, eight hundred twenty-one".