4991219 has 8 divisors (see below), whose sum is σ = 5214000. Its totient is φ = 4771872.

The previous prime is 4991201. The next prime is 4991237. The reversal of 4991219 is 9121994.

4991219 is nontrivially palindromic in base 11.

It is an interprime number because it is at equal distance from previous prime (4991201) and next prime (4991237).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4991219 - 2²⁰ = 3942643 is a prime.

It is a super-2 number, since 2×4991219² = 49824534211922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4991249) 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 7 ways as a sum of consecutive naturals, for example, 2372 + ... + 3950.

It is an arithmetic number, because the mean of its divisors is an integer number (651750).

Almost surely, 2^4991219 is an apocalyptic number.

4991219 is a deficient number, since it is larger than the sum of its proper divisors (222781).

4991219 is a wasteful number, since it uses less digits than its factorization.

4991219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717.

The product of its digits is 5832, while the sum is 35.

The square root of 4991219 is about 2234.1036233801. The cubic root of 4991219 is about 170.8974340188.

The spelling of 4991219 in words is "four million, nine hundred ninety-one thousand, two hundred nineteen".