2869939 has 4 divisors (see below), whose sum is σ = 2899624. Its totient is φ = 2840256.

The previous prime is 2869901. The next prime is 2869943. The reversal of 2869939 is 9399682.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2869939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2839939) 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 3 ways as a sum of consecutive naturals, for example, 14697 + ... + 14890.

It is an arithmetic number, because the mean of its divisors is an integer number (724906).

2^2869939 is an apocalyptic number.

2869939 is a deficient number, since it is larger than the sum of its proper divisors (29685).

2869939 is an equidigital number, since it uses as much as digits as its factorization.

2869939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29684.

The product of its digits is 209952, while the sum is 46.

The square root of 2869939 is about 1694.0894309333. The cubic root of 2869939 is about 142.1098634012.

The spelling of 2869939 in words is "two million, eight hundred sixty-nine thousand, nine hundred thirty-nine".