3491879 has 4 divisors (see below), whose sum is σ = 3536160. Its totient is φ = 3447600.

The previous prime is 3491867. The next prime is 3491881. The reversal of 3491879 is 9781943.

3491879 = 170² + 171² + ... + 248².

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3491879 - 2¹⁶ = 3426343 is a prime.

It is a super-3 number, since 3×3491879³ (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 (3491899) 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, 22022 + ... + 22179.

It is an arithmetic number, because the mean of its divisors is an integer number (884040).

Almost surely, 2^3491879 is an apocalyptic number.

3491879 is a deficient number, since it is larger than the sum of its proper divisors (44281).

3491879 is an equidigital number, since it uses as much as digits as its factorization.

3491879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44280.

The product of its digits is 54432, while the sum is 41.

The square root of 3491879 is about 1868.6570043751. The cubic root of 3491879 is about 151.7119284199.

Subtracting 3491879 from its reverse (9781943), we obtain a square (6290064 = 2508²).

The spelling of 3491879 in words is "three million, four hundred ninety-one thousand, eight hundred seventy-nine".