2129479 has 6 divisors (see below), whose sum is σ = 2340800. Its totient is φ = 1935780.

The previous prime is 2129473. The next prime is 2129497. The reversal of 2129479 is 9749212.

It is a happy number.

2129479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2129479 - 2⁵ = 2129447 is a prime.

It is a super-2 number, since 2×2129479² = 9069361622882, which contains 22 as substring.

2129479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129473) 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, 8679 + ... + 8920.

2^2129479 is an apocalyptic number.

2129479 is a deficient number, since it is larger than the sum of its proper divisors (211321).

2129479 is a wasteful number, since it uses less digits than its factorization.

2129479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17621 (or 17610 counting only the distinct ones).

The product of its digits is 9072, while the sum is 34.

The square root of 2129479 is about 1459.2734493576. The cubic root of 2129479 is about 128.6543437538.

The spelling of 2129479 in words is "two million, one hundred twenty-nine thousand, four hundred seventy-nine".