2395821 has 8 divisors (see below), whose sum is σ = 3226464. Its totient is φ = 1581200.

The previous prime is 2395807. The next prime is 2395823. The reversal of 2395821 is 1285932.

It is a happy number.

2395821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2395821 - 2⁷ = 2395693 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2395823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3651 + ... + 4256.

It is an arithmetic number, because the mean of its divisors is an integer number (403308).

2^2395821 is an apocalyptic number.

It is an amenable number.

2395821 is a deficient number, since it is larger than the sum of its proper divisors (830643).

2395821 is a wasteful number, since it uses less digits than its factorization.

2395821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8011.

The product of its digits is 4320, while the sum is 30.

The square root of 2395821 is about 1547.8439843860. The cubic root of 2395821 is about 133.8088348603.

The spelling of 2395821 in words is "two million, three hundred ninety-five thousand, eight hundred twenty-one".