3439979 has 4 divisors (see below), whose sum is σ = 3487176. Its totient is φ = 3392784.

The previous prime is 3439937. The next prime is 3439987. The reversal of 3439979 is 9799343.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9799343 = 2371 ⋅4133.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3439979 is a prime.

It is a super-3 number, since 3×3439979³ (a number of 21 digits) contains 333 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 (3439999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23489 + ... + 23634.

It is an arithmetic number, because the mean of its divisors is an integer number (871794).

Almost surely, 2^3439979 is an apocalyptic number.

3439979 is a deficient number, since it is larger than the sum of its proper divisors (47197).

3439979 is an equidigital number, since it uses as much as digits as its factorization.

3439979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47196.

The product of its digits is 183708, while the sum is 44.

The square root of 3439979 is about 1854.7180378699. The cubic root of 3439979 is about 150.9565391055.

The spelling of 3439979 in words is "three million, four hundred thirty-nine thousand, nine hundred seventy-nine".