2821963 has 4 divisors (see below), whose sum is σ = 2829088. Its totient is φ = 2814840.

The previous prime is 2821957. The next prime is 2821969. The reversal of 2821963 is 3691282.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2821957) and next prime (2821969).

It is a cyclic number.

It is not a de Polignac number, because 2821963 - 2⁹ = 2821451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2821969) 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, 2931 + ... + 3772.

It is an arithmetic number, because the mean of its divisors is an integer number (707272).

2^2821963 is an apocalyptic number.

2821963 is a deficient number, since it is larger than the sum of its proper divisors (7125).

2821963 is an equidigital number, since it uses as much as digits as its factorization.

2821963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7124.

The product of its digits is 5184, while the sum is 31.

The square root of 2821963 is about 1679.8699354414. The cubic root of 2821963 is about 141.3135386472.

It can be divided in two parts, 28219 and 63, that added together give a palindrome (28282).

The spelling of 2821963 in words is "two million, eight hundred twenty-one thousand, nine hundred sixty-three".