2549679 has 8 divisors (see below), whose sum is σ = 3708672. Its totient is φ = 1545240.

The previous prime is 2549669. The next prime is 2549683. The reversal of 2549679 is 9769452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2549679 - 2⁵ = 2549647 is a prime.

2549679 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2549679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2549669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38599 + ... + 38664.

It is an arithmetic number, because the mean of its divisors is an integer number (463584).

2^2549679 is an apocalyptic number.

2549679 is a deficient number, since it is larger than the sum of its proper divisors (1158993).

2549679 is a wasteful number, since it uses less digits than its factorization.

2549679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77277.

The product of its digits is 136080, while the sum is 42.

The square root of 2549679 is about 1596.7714301051. The cubic root of 2549679 is about 136.6139878935.

The spelling of 2549679 in words is "two million, five hundred forty-nine thousand, six hundred seventy-nine".