3129479 has 4 divisors (see below), whose sum is σ = 3313584. Its totient is φ = 2945376.

The previous prime is 3129463. The next prime is 3129487. The reversal of 3129479 is 9749213.

3129479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9749213 = 191 ⋅51043.

It is a cyclic number.

It is not a de Polignac number, because 3129479 - 2⁴ = 3129463 is a prime.

It is a super-2 number, since 2×3129479² = 19587277622882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3129439) 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 3 ways as a sum of consecutive naturals, for example, 92027 + ... + 92060.

It is an arithmetic number, because the mean of its divisors is an integer number (828396).

Almost surely, 2^3129479 is an apocalyptic number.

3129479 is a deficient number, since it is larger than the sum of its proper divisors (184105).

3129479 is a wasteful number, since it uses less digits than its factorization.

3129479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184104.

The product of its digits is 13608, while the sum is 35.

The square root of 3129479 is about 1769.0333518620. The cubic root of 3129479 is about 146.2707025019.

The spelling of 3129479 in words is "three million, one hundred twenty-nine thousand, four hundred seventy-nine".