2479689 has 6 divisors (see below), whose sum is σ = 3581786. Its totient is φ = 1653120.

The previous prime is 2479679. The next prime is 2479691. The reversal of 2479689 is 9869742.

It is a happy number.

2479689 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 only one way, i.e., 2350089 + 129600 = 1533^2 + 360^2 .

It is not a de Polignac number, because 2479689 - 2⁵ = 2479657 is a prime.

It is a super-2 number, since 2×2479689² = 12297715073442, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁹ + 4⁹ + 7 + 9⁴ + 6⁸ + 8³ + 9⁴ .

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (2479619) 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 5 ways as a sum of consecutive naturals, for example, 137752 + ... + 137769.

2^2479689 is an apocalyptic number.

It is an amenable number.

2479689 is a deficient number, since it is larger than the sum of its proper divisors (1102097).

2479689 is a wasteful number, since it uses less digits than its factorization.

2479689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275527 (or 275524 counting only the distinct ones).

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

The square root of 2479689 is about 1574.7028291078. The cubic root of 2479689 is about 135.3523306961.

The spelling of 2479689 in words is "two million, four hundred seventy-nine thousand, six hundred eighty-nine".