5649919 has 8 divisors (see below), whose sum is σ = 6188112. Its totient is φ = 5115840.

The previous prime is 5649913. The next prime is 5649949. The reversal of 5649919 is 9199465.

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 5649919 - 2³ = 5649911 is a prime.

It is a super-2 number, since 2×5649919² = 63843169413122, which contains 22 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 (5649911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2347 + ... + 4099.

It is an arithmetic number, because the mean of its divisors is an integer number (773514).

Almost surely, 2^5649919 is an apocalyptic number.

5649919 is a deficient number, since it is larger than the sum of its proper divisors (538193).

5649919 is a wasteful number, since it uses less digits than its factorization.

5649919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057.

The product of its digits is 87480, while the sum is 43.

The square root of 5649919 is about 2376.9558262618. The cubic root of 5649919 is about 178.1068982939.

The spelling of 5649919 in words is "five million, six hundred forty-nine thousand, nine hundred nineteen".