2363821 has 4 divisors (see below), whose sum is σ = 2366944. Its totient is φ = 2360700.

The previous prime is 2363807. The next prime is 2363831. The reversal of 2363821 is 1283632.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2363821 - 2⁵ = 2363789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2363831) 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, 376 + ... + 2206.

It is an arithmetic number, because the mean of its divisors is an integer number (591736).

2^2363821 is an apocalyptic number.

It is an amenable number.

2363821 is a deficient number, since it is larger than the sum of its proper divisors (3123).

2363821 is a wasteful number, since it uses less digits than its factorization.

2363821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122.

The product of its digits is 1728, while the sum is 25.

The square root of 2363821 is about 1537.4722761728. The cubic root of 2363821 is about 133.2104193649.

The spelling of 2363821 in words is "two million, three hundred sixty-three thousand, eight hundred twenty-one".