3479639 has 4 divisors (see below), whose sum is σ = 3528720. Its totient is φ = 3430560.

The previous prime is 3479627. The next prime is 3479653. The reversal of 3479639 is 9369743.

3479639 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: 9369743 = 43 ⋅217901.

It is a cyclic number.

It is not a de Polignac number, because 3479639 - 2¹² = 3475543 is a prime.

It is a super-3 number, since 3×3479639³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3479596 and 3479605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3479659) 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, 24434 + ... + 24575.

It is an arithmetic number, because the mean of its divisors is an integer number (882180).

Almost surely, 2^3479639 is an apocalyptic number.

3479639 is a deficient number, since it is larger than the sum of its proper divisors (49081).

3479639 is an equidigital number, since it uses as much as digits as its factorization.

3479639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49080.

The product of its digits is 122472, while the sum is 41.

The square root of 3479639 is about 1865.3790499520. The cubic root of 3479639 is about 151.5344568302.

It can be divided in two parts, 3479 and 639, that multiplied together give a square (2223081 = 1491²).

The spelling of 3479639 in words is "three million, four hundred seventy-nine thousand, six hundred thirty-nine".