2981823 has 16 divisors (see below), whose sum is σ = 4329696. Its totient is φ = 1814400.

The previous prime is 2981819. The next prime is 2981827. The reversal of 2981823 is 3281892.

It is an interprime number because it is at equal distance from previous prime (2981819) and next prime (2981827).

It is not a de Polignac number, because 2981823 - 2² = 2981819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3561 + ... + 4317.

It is an arithmetic number, because the mean of its divisors is an integer number (270606).

2^2981823 is an apocalyptic number.

2981823 is a deficient number, since it is larger than the sum of its proper divisors (1347873).

2981823 is a wasteful number, since it uses less digits than its factorization.

2981823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874.

The product of its digits is 6912, while the sum is 33.

The square root of 2981823 is about 1726.7955872077. The cubic root of 2981823 is about 143.9330804029.

The spelling of 2981823 in words is "two million, nine hundred eighty-one thousand, eight hundred twenty-three".