5621919 has 8 divisors (see below), whose sum is σ = 7546800. Its totient is φ = 3722496.

The previous prime is 5621899. The next prime is 5621921. The reversal of 5621919 is 9191265.

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

It is not a de Polignac number, because 5621919 - 2²¹ = 3524767 is a prime.

It is a super-2 number, since 2×5621919² = 63211946485122, which contains 22 as substring.

5621919 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5621919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5621939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5842 + ... + 6735.

It is an arithmetic number, because the mean of its divisors is an integer number (943350).

Almost surely, 2^5621919 is an apocalyptic number.

5621919 is a deficient number, since it is larger than the sum of its proper divisors (1924881).

5621919 is a wasteful number, since it uses less digits than its factorization.

5621919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12729.

The product of its digits is 4860, while the sum is 33.

The square root of 5621919 is about 2371.0586243280. The cubic root of 5621919 is about 177.8121888105.

The spelling of 5621919 in words is "five million, six hundred twenty-one thousand, nine hundred nineteen".