2863949 has 6 divisors (see below), whose sum is σ = 3148110. Its totient is φ = 2603480.

The previous prime is 2863943. The next prime is 2863951. The reversal of 2863949 is 9493682.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2271049 + 592900 = 1507^2 + 770^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2863949 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 (2863943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11714 + ... + 11955.

It is an arithmetic number, because the mean of its divisors is an integer number (524685).

2^2863949 is an apocalyptic number.

It is an amenable number.

2863949 is a deficient number, since it is larger than the sum of its proper divisors (284161).

2863949 is a wasteful number, since it uses less digits than its factorization.

2863949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23691 (or 23680 counting only the distinct ones).

The product of its digits is 93312, while the sum is 41.

The square root of 2863949 is about 1692.3205961047. The cubic root of 2863949 is about 142.0109262240.

The spelling of 2863949 in words is "two million, eight hundred sixty-three thousand, nine hundred forty-nine".