2296821 has 8 divisors (see below), whose sum is σ = 3161344. Its totient is φ = 1481760.

The previous prime is 2296817. The next prime is 2296837. The reversal of 2296821 is 1286922.

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

It is not a de Polignac number, because 2296821 - 2² = 2296817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2296871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12256 + ... + 12441.

It is an arithmetic number, because the mean of its divisors is an integer number (395168).

2^2296821 is an apocalyptic number.

It is an amenable number.

2296821 is a deficient number, since it is larger than the sum of its proper divisors (864523).

2296821 is a wasteful number, since it uses less digits than its factorization.

2296821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24731.

The product of its digits is 3456, while the sum is 30.

The square root of 2296821 is about 1515.5266411383. The cubic root of 2296821 is about 131.9397682044.

The spelling of 2296821 in words is "two million, two hundred ninety-six thousand, eight hundred twenty-one".