2949823 has 12 divisors (see below), whose sum is σ = 3205080. Its totient is φ = 2713472.

The previous prime is 2949803. The next prime is 2949839. The reversal of 2949823 is 3289492.

It is not a de Polignac number, because 2949823 - 2²¹ = 852671 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2 + 9⁵ + 4⁹ + 9⁶ + 8 + 2²¹ + 3³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2949803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16965 + ... + 17137.

It is an arithmetic number, because the mean of its divisors is an integer number (267090).

2^2949823 is an apocalyptic number.

2949823 is a deficient number, since it is larger than the sum of its proper divisors (255257).

2949823 is a wasteful number, since it uses less digits than its factorization.

2949823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 249 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 2949823 is about 1717.5048762667. The cubic root of 2949823 is about 143.4163457601.

The spelling of 2949823 in words is "two million, nine hundred forty-nine thousand, eight hundred twenty-three".