2879649 has 12 divisors (see below), whose sum is σ = 4238676. Its totient is φ = 1883232.

The previous prime is 2879641. The next prime is 2879651. The reversal of 2879649 is 9469782.

It is a happy number.

2879649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1299600 + 1580049 = 1140^2 + 1257^2 .

It is not a de Polignac number, because 2879649 - 2³ = 2879641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2879641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2542 + ... + 3495.

It is an arithmetic number, because the mean of its divisors is an integer number (353223).

2^2879649 is an apocalyptic number.

It is an amenable number.

2879649 is a deficient number, since it is larger than the sum of its proper divisors (1359027).

2879649 is a wasteful number, since it uses less digits than its factorization.

2879649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6096 (or 6093 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 2879649 is about 1696.9528573299. The cubic root of 2879649 is about 142.2699519932.

The spelling of 2879649 in words is "two million, eight hundred seventy-nine thousand, six hundred forty-nine".