3913219 has 4 divisors (see below), whose sum is σ = 3918096. Its totient is φ = 3908344.

The previous prime is 3913199. The next prime is 3913237. The reversal of 3913219 is 9123193.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3913219 - 2¹⁵ = 3880451 is a prime.

It is a super-2 number, since 2×3913219² = 30626565883922, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3913249) 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, 919 + ... + 2944.

It is an arithmetic number, because the mean of its divisors is an integer number (979524).

Almost surely, 2^3913219 is an apocalyptic number.

3913219 is a deficient number, since it is larger than the sum of its proper divisors (4877).

3913219 is a wasteful number, since it uses less digits than its factorization.

3913219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4876.

The product of its digits is 1458, while the sum is 28.

The square root of 3913219 is about 1978.1857850060. The cubic root of 3913219 is about 157.5837330862.

The spelling of 3913219 in words is "three million, nine hundred thirteen thousand, two hundred nineteen".